Date: Fri, 17 Jun 1994 08:39:48 +0700
From: eharold@sunspot.noao.edu (Elliotte Harold)
Subject: update hardware faq
Newsgroups: comp.sys.mac.hardware,comp.answers,news.answers
From: elharo@shock.njit.edu (Elliotte Rusty Harold)
Reply-To: elharo@shock.njit.edu (Elliotte Harold)
Organization: Department of Mathematics, NJIT
Summary: This document answers several of the most frequently asked
questions about Macintosh hardware on Usenet. To avoid
wasting bandwidth and as a matter of politeness please
familiarize yourself with this document BEFORE posting.
Subject: Macintosh hardware frequently asked questions (FAQ)
Keywords: FAQ, Macintosh, mac, macintosh, Mac, hardware
Approved: news-answers-request@MIT.edu
Followup-To: comp.sys.mac.hardware
Archive-name: macintosh/hardware-faq
Version: 2.2.1
Last-modified: June 12, 1994
Frequently Asked Questions about Macintosh Hardware
===================================================
comp.sys.mac.faq, part six:
comp.sys.mac.hardware
Copyright 1993,1994 by Elliotte Harold
Please see section 5.8 of the general FAQ if you wish to
redistribute, revise or republish this document in any way.
Archive-name: macintosh/hardware-faq
Version: 2.2.1
Last-modified: May 18, 1994
What's new in version 2.2.1:
----------------------------
4.1: What kind of memory should I use in my Mac?
The Mac IIvx can use 2 megabyte SIMMs.
5.2: All monitors are not created equal.
I've added a small table of the WYSIWIG resolutions for common
monitor sizes.
Appendix A: I've added info about the new Powerbook 520 and 540
and the Duo 280 models.
Table of Contents
==================================================================
I. Maintenance
1. How do I clean a keyboard?
2. How do I clean a screen?
3. How do I clean a mouse?
4. How do I clean a floppy drive?
5. How do I clean the inside of my mac?
II. Problems And Repairs
1. How do I open a compact Mac?
2. Now that I've opened my Mac how might I electrocute myself?
3. Where can I get my Mac fixed?
4. Can you recommend any good books about Mac repair?
5. The screen on my compact Mac is jittering.
III. Upgrades
1. What Macs will be upgradeable to the PowerPC?
2. Can I increase the speed of my Mac by accelerating the clock?
3. Can I add an FPU to my Mac?
4. Can I replace the 68LC040 with a 68040?
IV. Thanks for the Memory
1. What kind of memory should I use in my Mac?
2. Can I use PC SIMM's in my Mac?
3. What vendors have good prices on memory?
4. Do SIMMdoublers work?
V. Video
1. What's VRAM?
2. All monitors are not created equal.
3. There's a horizontal line across my monitor.
VI. Floppy Disks
1. What kind of floppy disks do I need for my Mac?
2. Why can't my Quadra (SE/30, Iici, etc.) read the disks from my Plus?
3. Does punching a hole in a double-density disk make a high-density disk?
VII. SCSI Troubles
1. How do I put my old internal hard disk in an external case?
2. What's the cheapest/fastest/most reliable/most common removable drive?
3. What's the best CD-ROM drive?
VIII. Printers
1. What's a good printer?
IX. Miscellaneous hardware FAQ's
1. What power adaptor do I need to use my mac in another country?
2. How can I fix the sound on my IIsi?
A. Models
RETRIEVING THE ENTIRE FAQ
=========================
The file you are reading now contains only hardware
information. This is the SIXTH part of this FAQ. Many other topics
of interest to comp.sys.mac.hardware readers are covered in other
FAQ lists in the Macintosh newsgroups. The first part of this
document is also posted to this newsgroup under the subject heading
"Introductory Macintosh frequently asked questions (FAQ)" and
includes a complete table of contents for the entire document as
well as information on where to post, ftp, file decompression,
trouble-shooting, and preventive maintenance. The second part is
posted to comp.sys.mac.system and features many questions about
system software. The third part is posted to comp.sys.mac.misc,
the fourth to comp.sys.mac.apps and the fifth part to
comp.sys.mac.wanted. All answer many questions that often
erroneously appear in comp.sys.mac.hardware. Please familiarize
yourself with all five sections of this document before posting.
All pieces are available for anonymous ftp from rtfm.mit.edu
[18.70.0.209] in the directory pub/usenet/news.answers/macintosh.
Except for the introductory FAQ which appears in multiple newsgroups
and is stored as general-faq, the name of each file has the format
of the last part of the group name followed by "-faq", e.g the
FAQ for comp.sys.mac.system is stored as system-faq and the FAQ
for comp.sys.mac.misc is stored as misc-faq. You can also
have these files mailed to you by sending an E-mail message
to mail-server@rtfm.mit.edu with the line:
send pub/usenet/news.answers/macintosh/"name"
in the body text where "name" is the name of the file you want as
specified above (e.g. general-faq). Send this server a message
with the subject "help" for more detailed instructions. For
access via Mosaic use the URL
http://www.cis.ohio-state.edu/hypertext/faq/usenet/macintosh/top.html
==================
MAINTENANCE (1.0)
==================
First a word about tools: many basic household items will
serve you well when taking care of a Mac but not all. Under no
circumstances should you use a Dustbuster or other common handvac to
clean electronic equipment. Instead you need a specially designed
vacuum cleaner with a conducting, grounded nozzle. These normally
cost about $40 in electronics supply stores. Most paper towels are
adequate for cleaning computer equipment. However Scott brand
towels do have lower rag content than any other commonly available
towel and are less likely to leave paper fibers behind on your
equipment.
HOW DO I CLEAN A KEYBOARD? (1.1)
---------------------------------
For basic cleaning a little isopropyl (rubbing) alcohol on a
Scott towel works well. Common household cleaners like Formula 409
also do a nice job. To perform a more thorough cleaning you'll need
to take the keyboard apart. Depending on the type of keyboard
you'll need one or more of a Phillips head screwdriver, a Torx T-15
screwdriver, and a special tool almost impossible to find when you
really really need it which goes by the technical name of "key
puller." Disassemble the keyboard, pull off all the keys, and use a
can of compressed air or an electronics vac to clean out all the
dust bunnies that have mated and grown and had children and mated
again and built apartment complexes and shopping malls inside your
keyboard. (I don't know why, but keyboards attract far more
detritus than any other computer component.) Finally if you spilled
Mountain Dew, coffee or some other liquid substance into the
keyboard, clean it with lukewarm water and a soft towel. Use
isopropyl alcohol on any remaining sticky spots.
HOW DO I CLEAN A SCREEN? (1.2)
-------------------------------
First turn off the monitor. Spray a small amount of Windex or
any other common glass cleaner onto a paper towel, NOT directly onto
the screen. Then wipe the paper towel over the screen. Finally
wipe the screen clean with a dry paper towel.
HOW DO I CLEAN A MOUSE? (1.3)
------------------------------
Poor mouse tracking is normally a sign of dirty contacts. To
clean them get a cassette tape head cleaning solution from any audio
store. Turn off the Mac. Then unplug the mouse. The bottom plate
of the mouse that holds the ball in place can be removed by pushing
down and twisting (like a child-proof medicine cap). The ball will
probably fall out when the plate is removed so be ready to catch it.
There's nothing quite so annoying as having to crawl around on the
floor looking under the furniture for a mouse ball. Dip a cotton
swab in the solution. Then rub it on the three ball contacts until
they appear clean to the eye. Finally clean the ball itself with
soap and water and dry it with a paper towel.
HOW DO I CLEAN A FLOPPY DRIVE? (1.4)
-------------------------------------
Normally you don't need to. Several companies sell floppy
drive cleaning kits that consist of nothing more than a disk and
some cleaning fluid for anywhere from five to twenty-five dollars.
These are almost as pointless as the CD cleaning kits sold to
overenthusiastic CD owners. I'd only use one of these if I was
already experiencing problems that were identifiably linked to the
floppy drive rather than individual disks. Cleaning a floppy drive
should not be part of normal maintenance. When you do need to clean
a floppy drive, Apple recommends the 3M floppy drive cleaning kit.
If you have a vacuum cleaner designed for electronic equipment,
you can always run it across the floppy slit, but even that is
rarely necessary. Or you can disassemble the Mac and use a can of
compressed air to blow the dust out of the floppy drive. Don't do
this without disassembling the Mac first though since otherwise
you'll just blow dust deeper inside your computer. And even when
the Mac is taken apart, be careful to blow the air AWAY from the
motor. If you blow air into the drive motor, you'll forcing dust
into it and make the drive more likely to fail.
HOW DO I CLEAN THE INSIDE OF MY MAC? (1.5)
-------------------------------------------
I don't advise taking a Mac apart just to clean it; but if
you've already dismantled it as part of another upgrade or repair,
blowing accumulated dust away with a can of compressed air won't
hurt. You can also use a specially designed computer vacuum
cleaner, but don't use a normal hand vac like a Dustbuster as
there's a small chance of damage to your Mac from the static
electricity it builds up.
On the other hand if during one of those late night football
games through the halls of your office someone drop-kicked a
half-full can of Mountain Dew straight through the uprights of your
cubicle onto your Mac (or if you've spilled a soda or some other
messy substance into the Mac in some less creative fashion), you
will need to clean it out. Unplug the Mac and let it sit for at
least an hour. It is essential to give all the parts of your Mac
time to discharge since you'll be cleaning it with water. Take the
Mac apart as described in the next section. Then clean it with
lukewarm tap water. Use a soft toothbrush to clean anything that
doesn't come off with water alone. Let the disassembled Mac air dry
for a couple of days, (Don't even think about using a hair dryer.)
and then put it back together.
===========================
PROBLEMS AND REPAIRS (2.0)
===========================
HOW DO I OPEN A COMPACT MAC? (2.1)
-----------------------------------
You need a Torx T-15 screwdriver, at least eight inches long,
available from any decent electronics supply shop, and a special
tool referred to as a "Mac Cracker." (In a pinch you can use a
spring loaded paper clip or even a three-sided ruler.) Before
starting clear off a large, flat work area and get an ash tray,
glass, or other container to hold the various small screws you need
to remove.
First disconnect all cables, most especially the power cable.
For maximum safety you should only work on your Mac after it's been
turned off for an hour so that various high-voltage capacitors have
had time to fully discharge. Lay the Mac face down on a soft towel
in your work space. If you're working on a Plus or earlier Mac
remove the battery cover and battery. Then unscrew all the screws
with the T-15 screwdriver. There are four of them on SE's and
Classics, two hidden inside the handle and two above the ports on
the bottom of the Mac. The Plus and earlier Macs have five screws
including one under the battery cover. After the screws are
removed, wedge the cracking tool into the seam and pry the two
pieces of the case apart. Then carefully lift the back cover off
and place it down in your work space. Finally inside you'll find a
metallic RF shield covering the ports which can easily be removed.
NOW THAT I'VE OPENED MY MAC HOW MIGHT I ELECTROCUTE MYSELF? (2.2)
------------------------------------------------------------------
Like most computers a Macintosh contains lots of exciting
high voltage equipment that can deliver shocks ranging from mildly
surprising to motherboard-frying to lethal. Since compact Macs cram
the high voltage picture tube and power supply into the same cramped
space shared with the motherboard, they're particularly dangerous.
If you're intent on committing computer-assisted suicide, here
are a few simple procedures that will greatly enhance your chance
of success:
* Be sure the computer and all cables are plugged in when you
work on it. It's difficult (though not impossible) to get a good,
solid shock without at least 120 volts of AC surging through the
works.
* Wear lots of metal jewelry. Long, dangling gold bracelets make
the most effective unexpected electrical contact between the picture
tube and your heart.
* Naturally you yourself want to be nice and clean before working
on your Mac so take a long shower. Don't bother to dry off though.
The heat from your Mac should dry you just fine.
* Pay special attention to the picture tube and flyback
transformer. Fondle them. Know them. Love them. If you're still
conscious take apart the power supply. (That's the silver box with
the big red warning letters on it.)
* Invite all your pets and small children to watch you work.
However there's no reason to invite an adult who might have the
presence of mind to call 911 should you be injured.
WHERE CAN I GET MY MAC FIXED? (2.3)
------------------------------------
If it's been less than a year since you bought the Mac, then
by all means bring it to a local Apple authorized dealer to get it
fixed under warranty for free. Not all dealers are created equal,
and you don't have to get your Mac repaired by the same dealer you
bought it from. Ask around locally to find out which one has the
best reputation for fast, dependable, hassle-free service.
After the warranty has expired an Apple dealer is generally not
the best (and certainly not the cheapest) place to have your Mac
fixed. A typical Apple authorized repair consists of swapping out
the entire malfunctioning subsystem. It's not at all uncommon for
Apple dealers to repair small problems by motherboard swaps that
cost almost as much or even more than a new Mac. For out of
warranty repairs your best bet is an unauthorized repair shop that
specializes in component level repairs. Be sure to find one that
specializes in Macintosh repairs, not a PC shop that does Macs
on the side. Again seek advice from local bulletin boards and
user groups.
If there are no reliable local repair shops, a number of
mail-order repair shops advertise in the back pages of MacUser and
MacWorld. Personally I find it horribly inconvenient to package and
ship a Mac just to get a flyback transformer replaced, but most of
these shops do offer reliable repairs at very competitive prices
and many people on the net swear by one or another.
CAN YOU RECOMMEND ANY GOOD BOOKS ABOUT MAC REPAIR? (2.4)
---------------------------------------------------------
Larry Pina has written several excellent guides to repairing
Macs. Mac Classic & SE Repair and Upgrade Secrets (Peachpit Press,
$28, ISBN #1-56609-022-9) covers the SE, SE/30, Classic, and Classic
II. This volume offers moderately detailed instructions for someone
with prior electronics experience to diagnose common problems, do
component level repairs and perform upgrades on compact Macs.
Macintosh Repair and Upgrade Secrets (Hayden Books $24.95, ISBN
#0-672-48452-8) is an earlier version of this book which covers
compact Macs from the 128K to the SE and the Lisa. Pina's sequel,
Macintosh II Repair and Upgrade secrets, $39.95, ISBN
#0-13-929530-5, offers similar coverage of the Mac II family of
Machines. All these books include valuable diagnostic software
on a bundled disk. Before delving into this volume you should
be comfortable wielding a soldering iron on expensive equipment.
Finally he's also written the somewhat less technical and more
detailed Dead Mac Scrolls (PeachPit Press, ISBN #0-940235-25-0, $32)
which offers symptom-based procedures for diagnosing and repairing
many common problems. This book includes good advice about how to
find and deal with a repair shop. All four books deserve a place
in the library of anyone who intends to wield a soldering iron on
their Mac.
THE SCREEN ON MY COMPACT MAC IS JITTERING. (2.5)
-------------------------------------------------
Nine times out of ten this is a symptom of a failing flyback
transformer. It may be accompanied by high-pitched whines and even
the smell of burnt ozone. This is a warning that the demise of the
Mac is imminent! Turn it off and don't use it again till the video
is fixed. If the flyback transformer is in this bad a shape,
chances are that other components either already have failed or
soon will. However many expensive parts of the video subsystem are
probably working just fine so this is one common problem that can
often be fixed much more cheaply by a component-level repair shop
than by an authorized dealer who'll likely swap out the entire
video board.
===============
UPGRADES (3.0)
===============
WHAT MACS WILL BE UPGRADEABLE TO THE POWERPC? (3.1)
----------------------------------------------------
Apple will provide logic board replacements for all Centris,
Quadra and WorkGroup Server models except the Quadra 700, 900 and
950. There should also be logic board replacements for the IIvx,
IIvi, LC 475, 520, 550, and 575, Performa 475, 476, 550, and 600.
Upgraded AV Macs will lose their special video capabilities, at
least initially. Apple will also make available PowerPC processor
upgrade boards that fit into the PDS slots of the Quadra 605, 610,
650, 700, 800, 900, and 950 as well as the Centris 610 and 650 and
the Performa 475 and 476. Macs upgraded via a PDS card run at twice
the speed of the system clock. Thus a 25 MHz 68040 Mac with a PDS
accelerator will become a 50 MHz PowerMac. You'll be able to
disable the accelerator if you have old software that's not PowerPC
compatible or that just plain runs faster on the older hardware.
68030 desktop Macs with expansion slots will be upgradeable via
third party accelerator cards. It is not yet known whether any
upgrade will be available for Powerbooks.
CAN I INCREASE THE SPEED OF MY MAC BY ACCELERATING THE CLOCK? (3.2)
--------------------------------------------------------------------
Apple engineers designed the Mac IIsi to run at 25 megahertz.
Apple marketeers made them reduce the speed by 20% so as not to hurt
sales of the IIci. Thus with various caveats it is generally safe
to accelerate a IIsi to 25 Mhz by changing the clock chip. All
other Mac models were designed to run at the speeds they normally
run at so "clock-chipping" them is a much iffier proposition.
Compact Macs, PowerBooks and the Mac II, IIx and IIcx as well as
the LC and LC II use the same oscillator to time various external
circuitry as they use to time the CPU so they almost never work if
the clock chip is replaced. Most other Macs seem to work for at
least a while when sped up by as much as twenty percent. Somewhere
beyond a twenty percent increase in clock speed most Macs experience
serial port problems though the exact level of safe increase varies
from Mac to Mac even within the same model and configuration. Other
problems may surface over time as the extra heat generated by the
faster speed increases the wear and tear on the insides of the Mac.
Performing this upgrade is not for the faint of heart. It is
quite complex and requires soldering, replacement of several parts,
and other non-trivial procedures. If done improperly it can result
in major, expensive damage to your Mac. I am not going to give
detailed instructions for doing this here. If you do want to do
this yourself, several text files are available at the usual ftp
sites that outline the procedure. For people who are willing to
open their Mac and swap out RAM or a hard drive but don't feel
comfortable soldering on their motherboard, KS Labs, (614) 373-0353,
offers $165 kits that more safely (no soldering) accelerate the
clock. These kits include a clip-on oscillator plus a heat sink
and fan to keep the faster circuitry cool.
CAN I ADD AN FPU TO MY MAC? CAN I REPLACE THE 68LC040 WITH A 68040? (3.3)
--------------------------------------------------------------------------
All 68020 and 68030 Macs that did not ship with an FPU
standard (i.e. the IIsi and LC series) have special slots that can
accommodate an FPU card. All Macs that have the FPUless 680LC40
CPU run just fine if that chip is replaced with a full 68040 that
includes an FPU. All PowerPC Macs include an integrated FPU. There
is no way to add only an FPU to a 68000 Mac like an SE though some
third party acclerators do include FPU's as well as faster CPU's.
============================
THANKS FOR THE MEMORY (4.0)
============================
WHAT KIND OF MEMORY SHOULD I USE IN MY MAC? (4.1)
--------------------------------------------------
The easiest way to get this question answered is to ask your
friendly, mail-order memory dealer. If you tell them what model of
Mac you have, what memory you already have in your Mac, and how much
you want to add, they should be able to tell you exactly what you
need. Memory comes in many configurations. All desktop Macs from
the Plus through the Quadra 700, 900, and 950 use 70 pin SIMMs that
normally need to be added four at a time (except in the SE, the Plus
and the Classics where they're added two at a time). Later Quadras,
the LC III, and the Centris's use 72 pin SIMMs that can be added one
SIMM at a time. PowerMacs also use 72 pin SIMMs but need them
installed in pairs. All portable Macs (PowerBooks, Duos, and the
Portable) have one RAM slot to hold a special card with extra RAM.
The chart below gives details for each model of Mac. For each
model it lists how much RAM is soldered to the motherboard, how many
slots are available to hold more RAM, what size memory is available
for those slots, different possible RAM configurations, what type of
memory is used (30 pin SIMM, 72 pin SIMM, or card type,) the minimum
speed of the RAM you should use in that model, and how many SIMMs or
cards need to be replaced or added at the same time.
Available Physical RAM Minimum Upgrade
CPU Onboard Slots Sizes Configs (MB) Pins Speed in
__________ _______ _____ _________ _____________ ____ _____ _____
Plus 0 4 256K,1M 1,2.5,4 30 150ns 2
SE 0 4 256K,1M 1,2,2.5,4 30 150ns 2
SE/30 0 8 256K,1M 1,2,4,5,8,16 30 120ns 4
4M,16M 17,20,32,64
65,68,80,128
Classic 1 3 256K,1M 1,2,2.5,4 30 120ns 2
Classic II 2 2 1M,2M,4M 2,4,6,10 30 120ns 2
Color Classic 4 2 1M,2M,4M 4,6,8,10 30 120ns 2
Mac II 0 8 256K,1M 1,2,4,5,8,17 30 120ns 4
4M,8M,16M 20,33,36,65,68
Mac IIx 0 8 256K,1M 1,2,4,5,8,16,17 30 120ns 4
4M,8M,16M 20,32,33,36,64
65,68,80,96,128
Mac IIcx 0 8 256K,1M 1,2,4,5,8,16,17 30 120ns 4
4M,8M,16M 20,32,33,36,64
65,68,80,96,128
Mac IIci 0 8 256K,512K 1,2,3,4,5,6,8 30 80ns 4
1M,4M,8M 16,17,18,20,32
16M 33,34,36,64,65
66,68,80,96,128
Mac IIsi 1 4 256K,512K 1,2,3,5,17,33 30 80ns 4
1M,4M,8M 65
16M
Mac IIvi 4 4 256K,512K 4,5,6,8,20,36 30 80ns 4
1M,4M,8M 36,68
16M
Mac IIvx 4 4 256K,512K 4,5,6,8,20,36 30 80ns 4
(Performa 600) 1M,4M,8M 36,68
16M
Mac IIfx 0 8 1M,4M,16M 4,8,16,20,32 30 80ns 4
64,68,80,128
LC 2 2 1M,2M,4M 2,4,6,8,10 30 120ns 2
LC II 4 2 1M,2M,4M 4,6,8,10 30 120ns 2
LC III 4 1 1M,2M,4M 4,5,6,8,12,36 72 80ns 1
8M,16M,32M
LC 520 4 1 1M,2M,4M 4,5,6,8,12,36 72 80ns 1
8M,16M,32MM
LC 550 4 1 1M,2M,4M 4,5,6,8,12,36 72 80ns 1
8M,16M,32MM
LC 575 4 1 1M,2M,4M 4,5,6,8,12,36 72 80ns 1
8M,16M,32MM
Centris 610 4 2 4M,8M,16M 4,8,12,16,20,24 72 80ns 1
32M 28,36,52,68
Centris 650 8 4 4M,8M,16M 8,12,16,20,24 72 80ns 1
32M 32,40,68,72,132
Centris 660av 4 2 4M,8M,16M 4,8,12,16,20,24 72 70ns 1
32M 28,36,52,68
Quadra 605 4 1 4M,8M,16M 4,8,12,20,36 72 80ns 1
32M
Quadra 610 4 2 4M,8M,16M 4,8,12,16,20,24 72 80ns 1
32M 28,36,52,68
Quadra 650 8 4 4M,8M,16M 8,12,16,20,24 72 80ns 1
32M 32,40,68,72,132
Quadra 660av 4 2 4M,8M,16M 4,8,12,16,20,24 72 70ns 1
32M 28,36,52,68
Quadra 700 4 4 1M,4M,16M 4,8,20,68 30 80ns 4
Quadra 800 8 4 4M,8M,16M 8,12,16,20,24 72 60ns 1
32M 28,32,36,40,44
48,52,56,60,64
68,72,80,84,88
104,108,112,120,132
Quadra 840av 0 4 4M,8M,16M 8,12,16,20,24 72 60ns 1
32M 28,32,36,40,44,48,52,56
60,64,68,72,76,80,84,88
96,100,104,112,128
Quadra 900 0 16 1M,4M,16M 4,8,12,16,20 30 80ns 4
24,28,32,36,40,48,52,64
64,68,72,76,80,84,88,96
100,112,128,132,136,144
148,160,192,196,208,256
Quadra 950 0 16 1M,4M,16M 4,8,12,16,20 30 80ns 4
24,28,32,36,40,48,52,64
64,68,72,76,80,84,88,96
100,112,128,132,136,144
148,160,192,196,208,256
PowerMac 6100 8 2 4M,8M,16M 8,16,24,40,68 72 80ns 2
32M
PowerMac 7100 8 4 4M,8M,16M 8,16,24,32,40 72 80ns 2
32M 48,56,72,80,88
104,132
PowerMac 8100 8 8 4M,8M,16M 8,16,24,32,40 72 80ns 2
32M 48,56,64,72,80,88
96,104,112,120,128
136,144,152,160,168
176,184,208,216,232,264
Portable 1 1 1M,2M,3M,4M 1,2,3,4,5 100ns 1
PowerBook 100 2 1 2M,4M,6M 2,4,6,8 TSOP 100ns 1
PowerBook 140 2 1 2M,4M,6M 2,4,6,8 TSOP 100ns 1
PowerBook 145 2 1 2M,4M,6M 2,4,6,8 TSOP 100ns 1
PowerBook 145b 4 1 2M,4M 4,6,8 TSOP 100ns 1
PowerBook 160 4 1 4M,6M,8M 4,8,10,12 TSOP 85ns 1
10M 14
PowerBook 165c 4 1 4M,6M,8M 4,8,10,12 TSOP 85ns 1
10M 14
PowerBook 170 2 1 2M,4M,6M 2,4,6,8 TSOP 100ns 1
PowerBook 180 4 1 4M,6M,8M 4,8,10,12 TSOP 85ns 1
10M 14
PowerBook 180c 4 1 4M,6M,8M 4,8,10,12 TSOP 85ns 1
10M 14
Duo 210 4 1 4M,8M,10M 4,8,12,14,16 85ns 1
12M,14M 18,24,32
20M,28M
Duo 230 4 1 4M,8M,10M 4,8,12,14,16 85ns 1
12M,14M 18,24,32
20M,28M
Duo 250 4 1 4M,8M,10M 4,8,12,14,16 85ns 1
12M,14M 18,24,32
20M,28M
Duo 270c 4 1 4M,8M,10M 4,8,12,14,16 85ns 1
12M,14M 18,24,32
20M,28M
The Mac Classic requires an adapter card to expand the RAM from
1 MB. This card includes 1 MB of extra memory and has two SIMM
slots that can either be left empty or filled with 256K or 1MB
SIMMs. The slots must be filled with the same size SIMM.
The Color Classic, LC, and LC II can only address 10 megabytes
of real RAM even if twelve megabytes of physical RAM are installed.
The Mac II requires the addition of a PMMU chip to access more
than eight megs of RAM. The first bank can only hold 256K or 1MB
SIMMs unless the FDHD upgrade is installed. Otherwise 4, 8, and 16
MB SIMMs have to be installed in Bank B. Furthermore these SIMMs
need an extra PAL chip on each SIMM as well as the normal eight DRAM
chips.
The Quadra 700 requires non-composite, low-profile 16 megabyte
SIMMs to fit under the internal hard drive. Composite SIMMs should
also not be used on 68040 AV Macs as they are practically guaranteed
to cause problems with the system due to the extra load and timing
required. Specifically you need to avoid 16MB SIMMs that use 32
4M-bit DRAMs rather than 8 16M-bit DRAMs.
PowerBooks use pseudo-static thin small-outline package cards
(TSOP's) of varying capacities. Duo's use special low-power,
self-refreshing dynamic RAM cards. Be sure to specify the model
you're ordering for when buying PowerBook RAM.
CAN I USE PC SIMM'S IN MY MAC? (4.2)
-----------------------------------------
Yes. Nine chip PC and SUN workstation SIMM's work perfectly
well in any desktop Mac that can use the equivalent eight chip
Macintosh SIMM's; e.g. a IIci works with 1x9, 4x9, or 16x9 PC 80 ns
PC SIMMs just as it does with 1x8, 4x8, or 16x8 80ns Mac SIMMs.
The extra chip on each SIMM provides a brain dead type of error
correction known as parity checking. It is unused on the Mac.
Since PC SIMM's are manufactured in higher volume than Mac SIMM's,
they are often cheaper despite the extra chip per SIMM. They're
also easier to resell.
WHAT VENDORS HAVE GOOD PRICES ON MEMORY? (4.3)
-----------------------------------------------
You should certainly shop around, but I've found that the Chip
Merchant, 800-426-6375 (orders), 619-268-4774 (info), consistently
has the lowest prices, excellent service and a knowledgeable sales
staff.
DO SIMMDOUBLERS WORK? (4.4)
----------------------------
Sometimes. Problems have been reported so make sure you get a
money-back guarantee before ordering. MicroMac's SIMMdoubler II
will double the SIMM capacity of all Mac II models and the Performa
600; i.e. it lets you fit two SIMMs in each slot on your logic
board. It also lets you use standard 4x8 SIMMs in the Mac II and
IIx rather than the more expensive PAL type normally required. At
$140 street a set of four is a little expensive but perhaps worth
it if you have a let of extra one meg SIMMs. Sermak Technology's
(800-209-7126) SimmStacks will fit two 30 pin SIMMs in one 72 pin
slot. Sermak also sells SIMM doublers that fit two 72 pin SIMMs
in one 72-pin slot.
Since the extra height of the SIMMdoubler provides more
leverage to exert force on the SIMM sockets, some users have
broken SIMM slots when installing these products so be careful.
Furthermore if you use more SIMMs than you have sockets, you'll be
drawing more power into them than your Mac was designed to supply
which might lead to problems down the road.
============
VIDEO (5.0)
============
WHAT'S VRAM? (5.1)
-------------------
Video RAM is where the computer stores the images displayed on
your screen. On some earlier Macs with built-in video (Mac 128,
IIci) this was kept in main memory. However it's considerably more
efficient and faster to store the screen image in its own separate
RAM. Generally the more VRAM you have the more colors or shades of
gray you can display and the larger the monitors you can use. The
chart below shows the number of colors that can be displayed at a
given resolution with the specified amount of VRAM. Monitor size
has no direct relation to the amount of VRAM required though larger
monitors normally support higher resolutions. Larger monitors
just have fewer dots per inch than smaller monitors with the same
resolution. Also note that simply because a particular video card
or Mac has sufficient VRAM to support a given number of colors
doesn't mean that it actually can though more modern cards and
monitors typically do support several resolutions.
Resolution 512x342 640x480 832x624 1024x768 1152x870 1280x1024
VRAM
256K 256 16 16
512K 32768 256 256 16 16
768K 32768 32768 256 256 16 16
1024K 16777216 16777216 32768 256 256 16
2048K 16777216 16777216 16777216 32768 32768 256
ALL MONITORS ARE NOT CREATED EQUAL. (5.2)
------------------------------------------
Choosing a monitor used to be simple. Like the Model-T Ford
you could have any color you wanted as long as it was black (and
white), 9", 512 by 342 pixels, 72 dpi. The PC drones made fun of the
small size and lack of color, but it was obvious to any unprejudiced
person who looked at a Macintosh that its display was far superior
to the CGA and EGA monitors being foisted on ignorant PC consumers.
Mac monitors are no longer so simple. Now one needs to be concerned
with such arcana as resolution, size, bit depth, dot pitch, and
refresh rate.
Size is the most obvious characteristic of a monitor. It's
measured diagonally from one corner of the screen to the opposite
corner. Actual monitor area is roughly proportional to the square
of the diagonal length so a twenty-inch monitor is more than four
times as large as a nine-inch monitor. Most manufacturers cheat on
their monitor sizes by measuring from one corner of the screen (or
even the case) to the other rather than from one edge of the visible
display to the other. Then they round up to the nearest inch with
the result that most "fourteen-inch monitors" are closer to twelve
and a half inches when measured truthfully. For many years Apple
was one of the more honest manufacturers, advertising it's twelve
and a half inch monitor as a thirteen inch monitor while other
manufacturers touted their "larger fourteen-inch" twelve and a half
inch monitors. However Apple has succumbed to the pressures of the
market, and like everyone else it now advertises twelve and a half
inch monitors as "fourteen inch displays."
Of course it's not the size that matters; it's how you use it.
Resolution defines how much information can be squeezed onto the
screen. Most monitors sold today are "multi-sync"; that is they
are capable of displaying more than one resolution. A fifteen inch
monitor at 1024 by 768 pixels displays two and a half times as much
information as the same monitor at 640 by 480 pixels. However
everything will appear smaller at the larger resolution since the
monitor has to fit more pixels into the same space. The clearest
resolution for a monitor is whatever comes closest to fitting 72
pixels (or dots) into each inch. This is the dpi rating of the
monitor. 72 dpi is the proper "WYSIWIG" (Pronounced Whizzy-wig,
What you see is what you get.) resolution though some people prefer
to work at a higher resolution that fits more information on the
screen. Here are the WYSIWIG resolutions for common monitor sizes.
If you do the math you'll notice that the resolutions seem too small
for the given size. That's because I've listed sizes here in their
commonly advertised form rather than by the actual paintable area on
the screen.
Size WYSIWIG Resolution
9 512 by 342
13,14,15 640 by 480
16,17 832 by 624
20 1024 by 768
21 1152 by 870
25 1280 by 1024
Resolution and bit depth define how much you can see on your
screen. Dot pitch defines how well you can see it. It's the
size of each individual pixel. Larger dot pitches look fuzzier.
Trinitron monitors paint the picture in lines rather than dots so
this doesn't really apply to them. However the "line stripe" of a
Trinitron display means virtually the same thing in practice as dot
pitch does for other monitors, and most salesmen and copywriters are
quite happy to confuse the two for you. Most monitors have dot
pitches of .39 mm, .29 mm, or .25 mm. The larger the dot pitch the
fuzzier your screen looks. .39 mm dot pitch monitors (the standard
in the PC world) look bad. .29 mm dot pitch monitors are acceptable
for all but the most demanding users. .25 mm is the best dot pitch
available with current technology.
Refresh rate also affects how clear the picture appears. 72 Hz
is the standard refresh rate for Mac monitors. That means the screen
is repainted 72 times a second, more than twice as fast as your
TV screen. A few monitors even repaint at an 80 Hz refresh rate
though I suspect that's overkill for all but the most sensitive
eyes. However many cheaper PC monitors have refresh rates of 60 Hz
or even less. This begins to reach the level that contributes to
eyestrain. Worse yet these monitors are interlaced, which means
that only half of the screen is redrawn on each pass. Interlaced
monitors have a visible flicker effect, and should be avoided at all
costs. Leave them on the shelves for the deluded PC users who think
saving $50 on a monitor is worth spending $500 at the optometrist.
Most Mac monitors are at least 69 dpi, 0.29 mm dot pitch with
refresh rates of 72 Hz. This is acceptable for most work. The
only common exception is the Apple Basic Color Monitor. This was
Apple's VGA monitor for low cost systems and was laughed out of the
marketplace. (It's the standard in the PC world which gives you
some idea of the lower standards on the other side of the fence.)
THERE'S A HORIZONTAL LINE ACROSS MY MONITOR. (5.3)
---------------------------------------------------
All Sony Trinitron monitors have a stabilizing wire in position
to cast a shadow about three quarters of the way down the screen.
Larger monitors also have a wire about a third of the way down from
the top of the display. There is no way to fix this short of
redesigning the Trinitron tube. This line is more obvious on some
monitors than others so if it seems particularly bad you can try to
convince the dealer you bought it from to exchange the monitor.
Other than that there's nothing that can be done about it.
===================
FLOPPY DISKS (6.0)
===================
WHAT KIND OF FLOPPY DISKS DO I NEED FOR MY MAC? (6.1)
------------------------------------------------------
There have been three kinds of floppy disks in the history of
the Macintosh. The original 128K Thin Mac (which used to be called
a classic Mac before the advent of the much superior Mac Classic)
and the subsequent 512K "Fat Mac" used 400K, single-sided
double-density diskettes. These disks are outdated, and it's highly
unlikely you'll actually see any. If you need to exchange data
with an older Macintosh, you'll need to use disks formatted as
single-sided. Since very few, if any, stores still sell one-sided
3.5 inch disks anymore, it's fortunate that all Macs deal quite
happily with double-sided disks formatted as single-sided. Just
click the button labeled "One-sided" after you select "Erase Disk"
from the Special menu.
*Neat Trick alert* Sometimes disks that fail formatting as
double-sided can be formatted as single-sided. Even neater trick:
In System 6 the shareware init BAD can map out bad sectors on a
floppy disk which lets about 70% of bad disks be formatted. (System
7 does this automatically.) Neatest trick of all: All name-brand
diskettes (SONY, Maxell, etc.) come with lifetime warranties. A lot
of offices keep a bad disk box for everyone to dump their bad disks
in and send the disks in for replacement when they collect ten or
so; but it's been my experience that if you return just a single bad
disk these companies will send a whole ten pack as a replacement.
With the introduction of the Mac Plus in 1986, Apple also
introduced a larger disk drive capable of reading and writing 800K,
"Double-Sided Double-Density" disks, DSDD for short. The only way
to tell these disks from the earlier, one-sided diskettes, is by
the label on the metal cover. Unformatted these are identical to
the 720K disks common in the IBM world. With the Mac IIx Apple
introduced what's alternately known as the Superdrive or "FDHD,"
short for "Floppy Drive, High Density." The FDHD (pronounced
Fud-Hud) can read and write all of the previous kinds of diskettes
plus double-sided high-density disks which are distinguished by two
holes in the disk case rather than the normal one. The FDHD uses
the extra hole to recognize a high-density disk.
WHY CAN'T MY QUADRA (SE/30, IICI, ETC.) READ THE DISKS FROM MY PLUS? (6.2)
---------------------------------------------------------------------------
The Macintosh Plus and earlier machines along with original Mac
II's and some SE's do not have the high density FDHD drive necessary
to properly read and format high-density disks. If you insert a
blank high-density disk in a low density drive, the Mac, not knowing
the difference between a double-density and a high-density floppy,
will happily format your expensive 1.4 meg disk as a cheap 800K
diskette. When you move this disk to a more advanced machine
with a FDHD drive, the newer drive will recognize the disk as a
high-density floppy by its extra hole. Since the disk has been
formatted as 800K instead of as 1400K, the FDHD drive will try to
read it as a 1400K disk and fail. Then it will ask if you want to
initialize it. As a temporary work around place a small piece of
tape over both sides of the extra hole on the high-density disk to
trick the Mac into treating the disk as double-density. This is a
temporary fix only, and the tape should be removed and the disk
reformatted to the proper size as soon as possible.
DOES PUNCHING A HOLE IN A DOUBLE-DENSITY DISK MAKE A HIGH-DENSITY DISK? (6.3)
------------------------------------------------------------------------------
Yes, but I certainly wouldn't trust any data I intended to keep
for more than the next minute or two to such a diskette. The extra
hole is not the only difference between a double-density and a
high-density disk. The magnetic media on a high-density disk
is a different type that is much more susceptible to formatting.
Double-density diskettes should only be formatted as 800K. With the
plummeting prices of real high-density disks, this really shouldn't
be an issue anymore.
====================
SCSI TROUBLES (7.0)
====================
HOW DO I PUT MY OLD INTERNAL HARD DISK IN AN EXTERNAL CASE? (7.1)
------------------------------------------------------------------
Alliance Peripheral Systems, 800-443-4199/816-483-6100 sells
cases for old internal 3.5 inch drives for $79. The price includes
instructions and technical support for the installation.
WHAT'S THE CHEAPEST/FASTEST/MOST RELIABLE/MOST COMMON REMOVABLE DRIVE? (7.2)
----------------------------------------------------------------------------
The oldest and most established format for removable media is
the Syquest 44 megabyte cartridge drive. Drives are sold by many
different vendors for about $300 and cartridges cost around $60
each. However this format is showing its age. It's too small
for a complete backup of most hard drives; the cartridges are big
and bulky; and it's not difficult to create Photoshop, Quark, or
PostScript files that are larger than one of these cartridges.
Consequently most service bureaus also accept at least the Syquest
88 format. 88 megabyte Syquest drives cost about $450 and can read
and write but not format the older 44 megabyte cartridges. 88
megabyte cartridges run about $90 each so they're considerably more
cost-effective. Although Syquest cartridges are the most commonly
used form of removable media for Macs, they do have a reputation for
unreliability and data corruption. They're suitable for moving
large files from your Mac to a service bureau, but not for making an
important backup and certainly not for use as a second hard drive.
I do not recommend Syquest 44 and 88 megabyte drives unless you
must exchange disks with someone who only has a Syquest drive.
Syquest recently introduced a new 270 megabyte drive that is
not compatible with its more popular 44 and 88 megabyte drives
(though it will read and write the less common Syquest 105 format).
At only $650 for the drive and $100 per cartridge, this drive has
the lowest cost per megabyte of any removable media. Furthermore
it's got the largest cartridge size so it's the easiest with which
to perform backups. Hard drives of 240 megabytes or less can be
backed up to one of these monsters just by dragging the hard disk
icon to the Syquest icon. However since these drives are relatively
new their reliability in production situations is still unknown.
While the size and price of these drives are very tempting I'd still
like to hear a few more real world experiences before I commit
to one.
Somewhat more proven is the Bernoulli MultiDisk 150 from
Iomega. Bernoulli has been making removable drives longer than
anyone, and their drives and cartridges have a reputation for speed
and reliability. I would be willing to trust an important backup
to a Bernoulli disk or to use a Bernoulli disk as a second hard
drive. A Bernoulli drive costs about $700 direct from Iomega
(1-800-756-3959). 150 megabyte disks cost about $110 so the cost per
megabyte is higher than the Syquest 270, but these drives are more
tested in real world uses than Syquest 270s. An additional
advantage is that these drives also read and write Bernoulli 35, 65,
90 and 105 megabyte cartridges so you can pick a cartridge size and
price to fit your needs.
Magneto-optical drives are another increasingly popular
technology. They're slow but very reliable. Depending on the drive
a cartridge can hold between 128 and 1300 megabytes. 128 megabyte
drives cost about $800-$1000 and are available from the usual
selection of hard drive vendors. Next to the reliability of the
media the biggest attraction of these drives is the extremely low
cost per megabyte ($0.32) with 128 MB disks selling for as little
as $40 each in quantity. Higher capacity and higher priced optical
drives have been introduced with capacities ranging from 256
megabytes to 1.3 gigabytes and prices from $1800 to $5000. Standards
are still a little unclear and prices a little high among the higher
capacity optical drives. I recommend waiting a few more months before
investing in this technology. Regardless of standards all these
drives are too slow to be used as a second hard disk. Their high
reliability and capacity makes them ideal for long-term
backups though.
Also surprisingly popular given their limited capacity and high
price are "flopticals." A floptical drive is about the size of an
external floppy drive, costs around $450 and can store 21 megabytes
of data on 3.5" disks that cost about $18 each. Since floptical
drives can also read and write high density (but not 800K) floppies
they're a reasonable choice if you need a second floppy drive.
However the twenty-one megabyte disks are too small for backing up
large hard drives or for transporting desktop publishing files and
graphics. Furthermore at only about twice the speed of on ordinary
floppy the media is slower than its competition. Since higher
capacity drives in other formats cost about the same, I advise
against floptical technology.
WHAT'S THE BEST CD-ROM DRIVE? (7.3)
------------------------------------
There are three features you should look for in a CD-ROM drive.
First and most importantly you want at least a double-speed drive.
If cost is your only concern single speed drives are available for
as little as $150 but they're painfully slow for most applications.
You'll also sacrifice many other bells and whistles. NEC recently
introduced a triple-speed CD mechanism which is sold both by them
and other manufacturers. These drives cost about 50% more than a
similar double speed drive. They may be useful if you mainly
retrieve text, graphics and other data files from CDs. However most
multimedia applications and games designed to be run from a CD are
optimized to work best at double-speed and will gain little if any
advantage from a triple-speed drive. Furthermore quadruple speed
drives are already available (though expensive) and I suspect that
most manufacturers and software vendors will jump straight to the
quadruple speed format and skip the triple speed drives completely.
Secondly the drive should be "multi-session, PhotoCD compatible."
Many drives on the market advertised as "PhotoCD compatible" but
can only read the first set of photos on a PhotoCD.
Finally you want a drive with excellent audio capabilities
including playback of audio CD's and digital copying of audio CD's
to your hard disk. That last capability is the kicker. It's
available out of the box only with the various versions of the Apple
CD-300, but FWB's CD-ROM Toolkit adds support for digital audio
extraction on drives based around the following mechanisms: the
Chinon 535, Hitachi 6750, NEC 3x, Sony 561, and Toshiba 3301, 3401
and 4101.
================
PRINTERS (8.0)
================
WHAT'S A GOOD PRINTER? (8.1)
-----------------------------
If price is your primary concern buy either a StyleWriter II or
a DeskWriter 520. Both provide excellent black and white and grey
scale output at a reasonable price. The StyleWriter occupies less
desk space and costs a few dollars less ($250 street vs. $300 for
the DeskWriter 520) while the DeskWriter has higher resolution (600
by 300 dpi vs. 360 by 360 dpi). Neither is a speed demon.
If you want a faster printer with better quality but don't want
to pay a lot, or if you want a minimum cost PostScript printer, the
TI MicroWriter and the DEC 1150 are both good buys. Each includes 2
megabytes of RAM, PostScript Level II, 300 dpi 4 page per minute
output and costs around $550 street. The MicroWriter also offers
auto-switching between PostScript Level II and HP PCL 4. Either
one should be plenty for personal use.
If you do heavy graphics or desktop publishing work, you need a
600 dpi printer. Apple's LaserWriter Select 360 at $1400 street is
an excellent printer with 600 dpi resolution, 7 megabytes of memory,
upgradeable to 16 megabytes, auto-switching between PostScript Level
II and PCL 4, and a built-in TrueType rasterizer. Plus it doesn't
have the paper curl problem associated with the other competitor in
this price range, the HP LaserJet 4M. Unfortunately the Select 360
doesn't have Ethernet or a SCSI port for external font storage so
it's not ideal for workgroup use (unless your workgroup's on
LocalTalk). If you want Ethernet and a SCSI port then consider
Apple's LaserWriter Pro 630 ($1800 street) instead. However look
for some exciting (i.e. 1200 dpi) new products in this price range
from Hewlett-Packard late this summer.
===================================
MISCELLANEOUS HARDWARE FAQ'S (9.0)
===================================
WHAT POWER ADAPTOR DO I NEED TO USE MY MAC IN ANOTHER COUNTRY? (9.1)
---------------------------------------------------------------------
All Mac CPU's since the SE EXCEPT for the Classic and Classic
II have universal power supplies which work anywhere in the world.
These CPU's only need a common adaptor plug to match the Mac's plug
to the wall plug in the country in question. You can buy one in
almost any hardware store for about three dollars. The same is true
of the Duo docks, all Apple CD drives except the original AppleCD
SC, all external Apple SCSI hard drives and all Apple monitors
except for the 12" RGB monitor and the 14" Basic Color Monitor.
Products without universal power supplies were typically sold
in two models, 110V/120V at 60 Hz for Japan and North America,
220V/240V at 50 Hz everywhere else. Thus depending on the origin
and destination the Classic, Classic II, Plus, 512KE, 512 and 128K
Macs need an adaptor plug and either a 220V/240V to 110V/120V
grounded isolation step-down transformer or a 110V/120V to 220V/240V
grounded isolation step-up transformer, NOT a voltage converter (at
least not unless you plan to use your Mac as a disposable egg
fryer). The same kind of transformer is needed by the 12" RGB
monitor, the Basic Color Monitor, StyleWriter, StyleWriter II,
ImageWriter I, and LaserWriters LS, NT, SC, IINT, IINTX, IIf,
IIg, 300, 310 and the original AppleCD SC.
The ImageWriter II, ImageWriter LQ, LaserWriter, LaserWriter
Plus, LaserWriter Pro 600 and 630, Apple Color Printer, Performa
Display and all Apple scanners have power supplies that are matched
not just to the voltage but also to the frequency of the host
country's wall current. These should not be used in a country
with a different power standard.
HOW CAN I FIX THE SOUND ON MY IISI? (9.2)
------------------------------------------
When the metal fingers that connect the IIsi speakers and the
motherboard get rusty, sound can blank out completely. This may not
occur until the IIsi has been running for several hours. As a quick
fix turn the speaker volume all the way up and then down again.
This sends a small spike of electricity across the contacts and
should temporarily dislodge the rust. If this doesn't work a whack
on the side of the Mac may also clear the contacts enough to restore
sound.
For a permanent and easy fix plug a pair of external speakers
into the sound out port. I've heard at least a dozen different
suggestions for permanent fixes to the internal speakers. The only
thing all suggestions have in common is taking the speaker
subassembly out and putting it back in again. When you're having
trouble with electronics, there's just no substitute for pulling
everything apart and putting it back together again, and that's all
you really need to do to fix the sound on your IIsi. The speaker
assembly is hidden under the hard drive so take that out first.
Once you've removed the hard drive, spread the four tabs that hold
the speaker assembly in place and slide it out. Then clean the
contacts with isopropyl alcohol. Even rubbing them hard with a
paper towel or lightly with sand paper should dislodge enough rust
to fix them. You can even coat the contacts with an anti-oxidant
like DeoxIt or PreservIt to prevent future problems. You should be
able to find some such compound at any electronics supply store.
==================
Appendix A: MODELS
==================
This appendix is a nearly comprehensive list of the different
species of Apple Macintosh computers. At the top of each listing is
the common name of the model. Any aliases it may have, either
common nicknames or names under which Apple sold it in other markets
follow in parentheses, e.g., Mac 128 (Thin Mac). This is followed
by fourteen essential characteristics of the model which I'll
elaborate on now.
The first important feature is the processor in your computer,
e.g.,
Processor: M68030 8 MHz, M68882 FPU
The first number is always the central processing unit (CPU).
This is the main brain of the computer and contributes more to the
speed of your Mac than any other single factor. M stands for
Motorola and means the chip is a member of the Motorola 68000
family. The other possibility is PPC which means the chip is a
member of the PowerPC family from either Motorola, IBM or both.
Generally within the same family a higher chip number means a faster
chip. A 68040 is faster than a 68030 which is faster than a 68000.
However Macs using the same chip can run at different clock speeds
measured in megahertz (MHz). The higher the megahertz the faster
the Mac. The clock speeds I list here are rounded to the nearest
whole number. More precisely 8 MHz should be 7.83 MHz, 16 MHz
should be 15.7 MHz and so on. If a Mac has a floating point
coprocessor (FPU) or digital signal processor (DSP) that's listed
here too. An FPU speeds up most scientific, mathematical, photo
retouching and ray tracing software. Most other types of programs
don't take advantage of it. A DSP is an even faster FPU used to
make real-time audio and video feasible. M68040's and all PowerPC
processors include integrated floating point units.
The second feature is the system software which will operate
that Mac. This is listed as a range of possible systems, e.g.
System: 6.0.3-7.1
If any enablers are needed for a model, they're listed here
too. Just because a particular system will run on an Mac doesn't
mean you should use it. If you're using System 6, I recommend using
6.0.7 or 6.0.8 with the LaserWriter Driver 8.1, Quicktime and the
Comm Toolbox. Any version of System 7 that will boot your Mac will
serve equally well for most people, but you should make sure you
have the latest tuneups and enablers. (See the system faq for more
details.)
The next field is RAM capacity, e.g.
RAM: 1-128 MB, 120 ns, 8 30 pin SIMM slots
For all but the earliest Macs this is given as a range from the
least amount of RAM Apple sold with the machine to the maximum
amount it can support with third party chips. RAM size is measured
in megabytes (MB). One megabyte is 1024 kilobytes which is 1024
bytes. A byte represents one letter of text, so one megabyte is
about three hundred pages of text. RAM speed is measured in
nanoseconds (ns), one billionths of a second. Smaller numbers are faster. Finally I list the number of slots included for RAM (some of
which may already be filled in the default configuration) and the
type of memory that can be installed in these slots. For more
details about RAM configurations please refer to "Thanks for the
Memory", section 4.0 of this document.
After RAM comes ROM, the non-volatile memory where much of the
system software is stored. This is listed as a size in either
kilobytes or megabytes since that's the only information that's
commonly available (and more than you really need to know anyway.)
Larger ROMs tend to be more recent and require less patching under
newer systems. 512K and larger ROMs are 32-bit clean. 256K and
larger ROMs include Color QuickDraw.
Ports are the holes on the back of the Mac into which something
may be plugged. ADB stands for Apple Desktop Bus. It's used for
plugging in mice, trackballs, keyboards, graphics tablets, and
obnoxious copy-protection dongles. ADB devices can be
daisy-chained, up to three devices per ADB port. Serial ports are
used for modems, printers, and LocalTalk networks. A SCSI
(pronounced "Scuzzy") port is mainly used for external storage
devices like hard drives, tape drives, and CD-ROMs; but there also
printers, monitors, Ethernet connectors, and scanners that can
attach to the SCSI bus. Mac SCSI ports are 25 pins. For more
details see the SCSI section below. Most Macs have at least one
sound port for hooking up external speakers and more recent Macs
also have a sound in port for a microphone. These are listed as
either Mono in/out or Stereo in/out depending on whether the Mac
supports mono or stereo sound. Finally if there's a port for an
external floppy drive, that's indicated by the word "floppy.".
The Floppy field specifies what kind of internal floppy drive
the model has, either 400K, 800K or SuperDrive. For more details
see section 6.0, Floppies, below.
Next I list the drive bays. Most Macs have exactly one bay for
a 3.5 inch half-height device, almost always an internal hard drive.
Some more recent Macs also have room for a half-height, five and a
quarter inch, removable media drive such as a CD-ROM ar a tape
backup system.
Slots are spaces inside the Mac for expansion cards of many
kinds including accelerators, extra serial ports, graphics cards,
and more. The most-common kinds of slots are Nubus and processor
direct (PDS). Nubus slots come in small (7") and full-size
varieties while PDS slots tend to be specific to the model. LC PDS
cards do mostly work in all LC slots, but even among Macs that have
Nubus slots not all cards work in all Macs, so it's best ask a
vendor if their card works in your Mac before buying.
Video specifies the characteristics of any built-in monitor and
the amount of VRAM for models that do not have a built-in monitor.
See section 6.0 on video to find out the resolutions and color
depths a given amount of VRAM supports. "None" means that you'll
need to use a graphics card as well as an external monitor.
Audio lists sample rates and bit depth supported by the CPU.
If there's a built-in speaker and/or microphone, this is mentioned
as well. Many Macs that don't have built-in stereo speakers or
microphones have jacks for external speakers or microphones. These
are listed under ports.
Network specifies the built-in networking capability of the
Mac, either LocalTalk or Ethernet. If Ethernet then the connector
type is also given. Third party cards and SCSI connectors provide
options for adding Ethernet to Macs that lack it.
Size specifies the linear dimensions of the model as height by
width by depth, then the approximate weight although this can vary
depending on the size of any internal drives and cards that may be
installed. This is the weight and size of the computer itself. It
includes the monitor and keyboard only if they're built-in to the
Mac. Finally I list the dates between which the model was sold and
any special features it may have.
Mac 128 (Thin Mac)
Processor: M68000 8 MHz
System: 1.0-2.0
RAM: 128K
ROM: 64K
Ports: 2 serial, floppy, mono out
Floppy: 400K
Bays: None
Slots: None
Video: built-in black and white 9" monitor, 512 by 384 resolution
Audio: Mono speaker
Network: None
Sold: 1/84 till 4/86
Features: Keyboard
Mac 512 (Fat Mac)
Processor: M68000 8 MHz
System: 1.0-3.3
RAM: 512K
ROM: 64K
Ports: 2 serial, floppy, mono out
Floppy: 400K
Bays: None
Slots: None
Video: built-in black and white 9" monitor, 512 by 384 resolution
Audio: Mono speaker
Network: None Sold: 9/84 till 4/86
Features: Keyboard
Mac 512KE
Processor: M68000 8 MHz
System: 1.0-4.3
RAM: 512K
ROM: 128K
Ports: 2 serial, floppy, mono out
Floppy: 800K
Bays: None
Slots: None
Video: built-in black and white 9" monitor, 512 by 384 resolution
Audio: Mono speaker
Network: None
Sold: 4/86 till 3/87
Features: Keyboard
Mac Plus
Processor: M68000 8 MHz
System: 3.0-7.1
RAM: 1-4 MB, 150 ns, 4 30 pin SIMM slots
ROM: 128K
Ports: 2 serial, SCSI, floppy, mono out
Floppy: 800K
Bays: None
Slots: None
Video: built-in black and white 9" monitor, 512 by 384 resolution
Audio: Mono speaker
Network: LocalTalk
Sold: 1/86 till 10/90
Features: Keyboard
Macintosh SE
Processor: M68000 8 Mhz
System: 3.0-7.1
RAM: 1-4 MB, 150 ns, 4 30 pin SIMM slots
ROM: 256K
Ports: 2 serial, SCSI, floppy, 2 ADB, mono out
Floppy: 1 or 2 800K or SuperDrive
Bays: One for either a 3.5" internal hard drive or a second floppy drive
Slots: 1 SE Expansion Bus slot
Video: built-in black and white 9" monitor, 512 by 384 resolution
Network: LocalTalk
Sound: Mono out
Sold: 3/87 till 10/90
Features: Beginning in August, 1989 SE's included a SuperDrive.
SE/30
Processor: M68030 16 MHz, M68882 16 MHz FPU
System: 6.0.3-7.1
RAM: 1-128 MB, 120 ns, 8 30 pin SIMM slots
ROM: 256K
Ports: 2 serial, SCSI, floppy, 2 ADB, stereo out
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 120 pin 030 PDS
Video: built-in black and white 9" monitor, 512 by 384 resolution
Audio: 8-bit, 22 kHz stereo out
Network: LocalTalk
Sold: 1/89 till 10/91
Features: 32 bit data bus
Mac II
Processor: M68020 16 MHz, M68881 16 MHz FPU
System: 4.0.1-7.1
RAM: 1-68 MB, 120 ns, 8 30 pin SIMM slots
ROM: 256K
Ports: 2 serial, SCSI, 2 ADB, stereo out
Floppy: 1 or 2 800K
Bays: 1 3.5" half-height
Slots: 6 Nubus
Video: None
Audio: Stereo speaker
Network: Localtalk
Sold: 3/87 till 1/90
Features: An upgrade is available that adds new ROMs and a SuperDrive.
Mac IIx
Processor: 16 MHz M68030 CPU, 16 MHz M68882 FPU
System: 6.0.2-7.1
RAM: 1-128 MB, 120 ns, 8 30 pin SIMM slots
ROM: 256K
Ports: 2 serial, SCSI, floppy, 2 ADB, stereo out
Floppy: 1 or 2 SuperDrives
Bays: 1 3.5" half-height
Slots: 6 Nubus
Video: None
Audio: Stereo speaker
Network: LocalTalk
Sold: 9/88 till 10/90
Features:
Mac IIcx
Processor: M68030 16 MHz, M68882 16MHz FPU
System: 6.0.3-7.1
RAM: 1-128 MB, 120 ns, 8 30 pin SIMM slots
ROM: 256K
Ports: 2 serial, SCSI, floppy, 2 ADB, stereo out
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 3 Nubus
Video: None
Network: Localtalk
Audio: Stereo speaker
Dimension: 5.5 x 11.9 x 14.4 in, 14.0 x 30.2 x 36.5 cm
Weight: 13.7 lb., 6.2 kg
Sold: 3/89 till 10/90
Features:
Mac IIci
Processor: M68030 25 MHz, M68882 25MHz FPU
System: 6.0.4-7.1
RAM: 1-128 MB, 100 ns, 8 30 pin SIMM slots
ROM: 512K
Ports: 2 serial, SCSI, floppy, 2 ADB, stereo out
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 3 Nubus
Video: resolutions up to 640 by 870 pixels with 256 colors
Audio: 8-bit, 22 kHz stereo speaker
Network: LocalTalk
Sold: 9/89 till 2/93
Dimension: 5.5 x 11.9 x 14.4 in, 14.0 x 30.2 x 36.5 cm
Weight: 13.7 lb., 6.2 kg
Features: Slot for cache card that can speed up performance as much as
50%. After October, 1991 this card was bundled with IIci's.
Mac IIsi
Processor: M68030 20 MHz
System: 6.0.6-7.1
RAM: 2-65 MB, 80 ns, 4 30 pin SIMM slots
ROM: 512K
Ports: 2 serial, SCSI, floppy, ADB, stereo out
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 1 Nubus and/or PDS
Video: supports resolutions of up to 640 by 870 pixels with 256 colors
Audio: Mono microphone, Stereo speaker
Network: LocalTalk
Sold: 10/90 till 2/93
Features: Since this model was designed to be run at 25 MHz it can
safely be "clock-chipped" to that higher speed. (See question 4.2)
Substantial speed boosts are also possible by increasing the cache
size. See question 1.3 in the system FAQ.
Mac IIfx
Processor: M68030 40 Mhz, M68882 FPU 40 MHz
System: 6.0.5-7.1
RAM: 4-128 MB, 80 ns, 8 30 pin SIMM slots
ROM: 512K
Ports: 2 serial, SCSI, floppy, 2 ADB, stereo out
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 6 Nubus
Video: None
Audio: Stereo speaker
Network: LocalTalk
Sold: 3/90 till 10/91
Features: 32K static RAM cache plus lots of other special, expensive
orphaned hardware designed to improve speed which software never
took advantage of.
Mac IIvi
Processor: M68030 16 Mhz
System: 7.1, System Enabler 001 1.0.1
RAM: 4-68 MB, 80 ns, 4 30 pin SIMM slots
ROM: 1 MB
Ports: 2 serial, SCSI, 2 ADB, stereo out
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 3 Nubus
Video: 512K-1MB VRAM
Audio: Mono microphone, mono speaker
Network: LocalTalk
Sold: 10/92 till 10/93
Features: 32-bit data bus. Not sold in the U.S.
Mac IIvx
Processor: M68030 32 Mhz, M68882 FPU 32 MHz
System: 7.1, System Enabler 001 1.0.1
RAM: 4-68 MB, 80 ns, 4 30 pin SIMM slots
ROM: 1 MB
Ports: 2 serial, SCSI, 2 ADB, mono in, stereo out
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 3 Nubus
Video: 512K-1MB VRAM
Audio: Mono microphone, mono speaker
Network: LocalTalk
Sold: 10/92 till 10/93
Features: 32k data cache, 32 bit data bus. Since the system runs at half the speed of the CPU, this is only about as fast as the 25 MHz IIci.
Performa 600
Processor: M68030 32 Mhz
System: 7.1, System Enabler 001 1.0.1
RAM: 4-68 MB, 80 ns, 4 30 pin SIMM slots
ROM: 1 MB
Ports: 2 serial, SCSI, 2 ADB, mono in, stereo out
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 3 Nubus
Video: 512-1MB VRAM
Audio: Mono microphone, mono speaker
Network: LocalTalk
Sold: 10/92 till 10/93
Features: 32 bit data bus. Since the system runs at half the speed
of the CPU, this is only about as fast as the 20 MHz IIsi. Identical
to the IIvx except for the lack of the 32k data cache and FPU. An FPU
can be added. A cache cannot be.
Mac Classic
Processor: M68000 8 Mhz
System: 6.0.6-7.1
RAM: 1-4 MB, 120 ns, 4 30 pin SIMM slots
ROM: 512K
Ports: 2 serial, SCSI, ADB
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: None
Video: built-in black and white 9" monitor, 512 by 384 resolution
Audio: Mono speaker
Network: LocalTalk
Sold: 10/90 till 12/91
Features: Can be booted from the ROM.
Mac Classic II (Performa 200)
System: 6.0.8L-7.1.1
Processor: M68030 16 Mhz
RAM: 4-10 MB, 120 ns, 4 30 pin SIMM slots
ROM: 512K
Ports: 2 serial, SCSI, floppy, ADB, mono out, mono in
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: None
Video: built-in black and white 9" monitor, 512 by 384 resolution
Audio: 8-bit, 11 or 22 kHz, mono speaker, mono microphone
Network: LocalTalk
Size: 13.2 x 9.7 x 11.2 in, 17.1 lbs (33.6 x 24.6 x 28.5 cm, 7.8 kg)
Sold: 10/91 till Present
Features:
Color Classic
Processor: M68030 16 Mhz
System: 7.1, System Enabler 401 1.0.5
RAM: 4-10 MB, 120 ns, 2 30 pin SIMM slots
ROM: 1 MB
Ports: 2 serial, SCSI, 2 ADB, mono out, mono in
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 1 LC PDS
Video built-in 10" Trinitron monitor, 512 by 384 resolution,
256 colors (expandable to 32000 colors), 76 dpi
Audio: 8-bit, 22 kHz, mono speaker, mono microphone
Network: LocalTalk
Sold: 2/93 till Present
Features: Screen Power Saver
Color Classic II
Processor: M68030 33 Mhz
System: 7.1, System Enabler ???
RAM: 4-10 MB, 80 ns, 4 30 pin SIMM slots
ROM: 1 MB
Ports: 2 serial, SCSI, 2 ADB, mono out, mono in
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 1 LC PDS
Video: built-in 10" Trinitron monitor, 256 colors expandable to
32768, 76 dpi
Audio: 8-bit, 22 kHz, mono speaker, mono microphone
Network: LocalTalk
Sold: 10/93 till Present
Features: Currently sold only in the Far East. 32-bit data bus.
Mac LC
Processor: M68020 16 Mhz
System: 6.0.6-7.1
RAM: 2-10 MB, 120 ns, 4 30 pin SIMM slots
ROM: 512K
Ports: 2 serial, SCSI, ADB, floppy, mono out, mono in, video
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 1 LC PDS
Video: 256K-512K VRAM
Audio: 8-bit, 22 kHz, mono speaker, mono microphone
Network: LocalTalk
Size: 3.0 x 12.2 x 15.0 in, 8.8 lbs (8.1 x 31.0 x 38.2 cm, 4.0 kg)
Sold: 10/90 till 12/92
Features: Can emulate an Apple IIe with the appropriate PDS card.
LC II (Performa 400, 405, 430)
Processor: M68030 16 Mhz
System: 6.0.8L-7.1.1
RAM: 4-10 MB, 120 ns, 4 30 pin SIMM slots
ROM: 512K
Ports: 2 serial, SCSI, ADB, mono out, mono in, video
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 1 LC PDS
Video: 512K VRAM
Audio: 8-bit, 22 kHz, mono speaker, mono microphone
Network: LocalTalk
Size: 3.0 x 12.2 x 15.0 in, 8.8 lbs (8.1 x 31.0 x 38.2 cm, 4.0 kg)
Sold: 3/92 till 10/93
Features: Can emulate an Apple IIe with the appropriate PDS card.
LC III (Performa 450)
Processor: M68030 25 Mhz
System: 7.1, System Enabler 003 1.0
RAM: 4-32 MB, 80 ns, 1 72 pin SIMM slot
ROM: 1 MB
Ports: 2 serial, SCSI, ADB, mono out, mono in, video
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 1 LC PDS
Video: 512K-768K VRAM
Audio: 8-bit, 22 kHz, mono speaker
Network: LocalTalk
Size: 3.2 x 12.2 x 15.0 in, 8.8 lbs (8.1 x 31.0 x 38.2 cm, 4.0 kg)
Sold: 2/93 till Present
Features: Can emulate an Apple IIe with the appropriate PDS card.
Mac LC 520 (Performa 550)
Processor: M68030 25 Mhz
System: 7.1, System Enabler 403 1.0.1
RAM: 5-36 MB, 80 ns, 1 72 pin SIMM slot
ROM: 1 MB
Ports: 2 serial, SCSI, ADB, stereo out, mono in
Floppy: SuperDrive
Bays: 1 3.5" half-height, 1 5.25" half-height removable
Slots: 1 LC PDS
Video: Built-in 14" Trinitron monitor, 640 by 480 pixels, 69 dpi
Audio: 8-bit, 22 kHz, mono microphone, Stereo speaker
Network: LocalTalk
Size: 17.9 x 13.5 x 16.5 in., 40.5 lbs (45.5 x 34.4 x 42.0 cm, 18.4 kg)
Sold: 6/93 till present
Features: CD-ROM, 32 bit data bus
Mac LC 550 (Performa 460)
Processor: M68030 33 Mhz
System: 7.1, System Enabler ???
RAM: 5-36 MB, 80 ns, 1 72 pin SIMM slot
ROM: 1 MB
Ports: 2 serial, SCSI, ADB, stereo out, mono in
Floppy: SuperDrive
Bays: 1 3.5" half-height, 1 5.25" half-height removable
Slots: 1 LC PDS
Video: Built-in 14" Trinitron monitor, 640 by 480 pixels, 69 dpi
Audio: 8-bit, 22 kHz, mono microphone, Stereo speaker
Network: LocalTalk
Size: 17.9 x 13.5 x 16.5 in., 40.5 lbs (45.5 x 34.4 x 42.0 cm, 18.4 kg)
Sold: 1/94 till present
Features: CD-ROM, 32 bit data bus
Mac LC 575
Processor: M68LC040 33 Mhz
System: 7.1, System Enabler ???
RAM: 8-36 MB, 80 ns, 1 72 pin SIMM slot
ROM: 1 MB
Ports: 2 serial, SCSI, ADB, stereo out, mono in
Floppy: SuperDrive
Bays: 1 3.5" half-height, 1 5.25" half-height removable
Slots: 1 LC PDS
Video: Built-in 14" Trinitron monitor, 640 by 480 pixels, 69 dpi
Audio: 8-bit, 22 kHz, mono microphone, stereo speaker
Network: LocalTalk
Size: 17.9 x 13.5 x 16.5 in., 40.5 lbs (45.5 x 34.4 x 42.0 cm, 18.4 kg)
Sold: 2/94 till Present
Features: CD-ROM (optional on Performa 460), 32 bit data bus
Centris 610
Processor: M680LC40 20 Mhz
System: 7.1, System Enabler 040 1.1
RAM: 8-68 MB, 80 ns, 2 72 pin SIMM slots
ROM: 1 MB
Ports: 2 serial, SCSI, ADB, stereo out, mono in
Floppy: SuperDrive
Bays: 1 3.5" half-height, 1 5.25" half-height removable
Slots: 1 7" Nubus or Quadra PDS slot
Video: 512K-1MB VRAM drives all Mac monitors plus some VGA,
SVGA, NTSC, and PAL monitors
Audio: 22 KHz, mono microphone, stereo speaker
Network: Localtalk, optional Ethernet
Size: 3.4 x 16.3 x 15.6 in, 14.0 lbs (8.5 x 41.5 x 39.7 cm, 6.4 kg)
Sold: 2/93 till Present
Features: FPU can be added by replacing the 680LC40 with a 68040 CPU.
No heat sink is necessary for this upgrade.
Centris 650
Processor: M68040 25 Mhz
System: 7.1, System Enabler 040 1.1
RAM: 8-136 MB, 80 ns, 4 72 pin SIMM slots
ROM: 1 MB
Ports: 2 serial, SCSI, 2 ADB, stereo out, mono in, AAUI-15
Floppy: SuperDrive
Bays: 1 3.5" half-height, 1 5.25" half-height removable
Slots: 3 Nubus, one Quadra PDS
Video: 512K-1MB VRAM drives all Mac monitors plus some VGA,
SVGA, NTSC, and PAL monitors
Audio: Mono microphone, stereo speaker
Network: LocalTalk, Ethernet
Size: 6.0 x 13.0 x 16.5 in, 25 lb (15.2 x 33.0 x 41.9 cm, 11.3 kg)
Sold: 2/93 till
Features: Some models have only 4 megabytes of soldered RAM and no
Ethernet. These can only be expanded to 132 megabytes.
Centris 660av (aka Quadra 660av)
Processor: M68040 33 Mhz, 55-MHz AT&T 3210 DSP
System: 7.1, System Enabler 088 1.1
RAM: 8-68 MB, 70 ns, 2 72 pin SIMM slots
ROM: 2 MB
Ports: Geoport, 2 serial, SCSI, ADB, stereo out, stereo in
Floppy: SuperDrive
Bays: 1 3.5" half-height, 1 5.25" half-height removable
Slots: 1 7" Nubus
Video: 1MB-2MB VRAM drives all Mac monitors plus some VGA, SVGA, NTSC,
and PAL monitors; 2 S-Video and two composite video ports, one
each for input and output.
Audio: 16 bit, 8-48 kHz, mono microphone, stereo speaker
Network: LocalTalk, Ethernet
Size: 3.4 x 16.3 x 15.6 in, 14.0 lbs (8.5 x 41.5 x 39.7 cm, 6.4 kg)
Sold: 7/93 till Present
Features: PlainTalk speech recognition, video capture,
Quadra 605 (LC 475, Performa 475, Performa 476)
Processor: M68LC040 25 Mhz
System: 7.1, System Enabler 065 1.0
RAM: 4-36 MB, 80 ns, 1 72 pin SIMM slot
ROM: 1 MB
Ports: 2 ADB, SCSI, 2 serial, stereo out, mono in
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 1 LC III PDS
Video: 512K-1MB VRAM drives all Mac monitors plus some VGA,
SVGA, NTSC, and PAL monitors
Audio: 8-bit, 11 or 22 kHz, stereo microphone, stereo speaker
Network: LocalTalk
Size: 3.2 x 12.2 x 15.0 in, 8.8 lbs (8.1 x 31.0 x 38.2 cm, 4.0 kg)
Sold: 10/93 till Present
Features:
Quadra 610
Processor: M68040 25 Mhz (M680LC40 on 8/160 models sold in the U.S.)
System: 7.1, System Enabler 040 1.1
RAM: 8-72 MB, 80 ns, 2 72 pin SIMM slots
ROM: 1 MB
Ports: 2 ADB, SCSI, 2 serial, stereo out, mono in
Floppy: SuperDrive
Bays: 1 3.5" half-height, 1 5.25" half-height removable
Slots: 1 7" Nubus or Quadra PDS slot
Video: 512K-1 MB VRAM drives all Mac monitors plus some VGA, SVGA,
NTSC, and PAL monitors
Audio: 22 KHz, Mono microphone, stereo speaker
Network: LocalTalk, optional Ethernet
Size: 3.4 x 16.3 x 15.6 in, 14.0 lbs (8.5 x 41.5 x 39.7 cm, 6.4 kg)
Sold: 10/28/93 till Present
Features:
Quadra 610 DOS compatible
Processor: M68LC040 25 Mhz, 486SX 25 MHz
System: 7.1, System Enabler 040 1.1
RAM: 8-72 MB, 80 ns, 2 72 pin SIMM slots
ROM: 1 MB
Ports: 2 ADB, SCSI, 2 serial, stereo out, mono in
Floppy: SuperDrive
Bays: 1 3.5" half-height, 1 5.25" half-height removable
Slots: 1 7" PDS slot filled with DOS compatibility card
Video: 512K-1 MB VRAM drives all Mac monitors plus some VGA, SVGA,
NTSC, and PAL monitors. Dual monitor support.
Audio: 22 KHz, Mono microphone, stereo speaker
Network: LocalTalk, optional Ethernet
Size: 3.4 x 16.3 x 15.6 in, 14.0 lbs (8.5 x 41.5 x 39.7 cm, 6.4 kg)
Sold: 10/28/93 till Present
Features: MS-DOS 6.2
Quadra 650
Processor: M68040 33 Mhz
System: 7.1, System Enabler 040 1.1
RAM: 8-136 MB, 80 ns, 4 72 pin SIMM slots
ROM: 1 MB
Ports: 2 serial, SCSI, 2 ADB, headphone jack
Floppy: SuperDrive
Bays: 1 3.5" half-height, 1 5.25" half-height removable
Slots: 3 Nubus, one Quadra PDS
Video: 512K-1 MB VRAM drives all Mac monitors plus some VGA, SVGA,
NTSC, and PAL monitors
Audio: 22 khz, Mono microphone, stereo speaker
Network: LocalTalk, Ethernet
Size: 6.0 x 13.0 x 16.5 in, 25 lb (15.2 x 33.0 x 41.9 cm, 11.3 kg)
Sold: 10/28/93 till present
Features:
Quadra 700
Processor: M68040 25 Mhz
System: 7.1
RAM: 4-128 MB, 80 ns, 4 30 pin SIMM slots
ROM: 1 MB
Ports: 2 ADB, 2 serial, SCSI, video, stereo out, mono in, AAUI-15 Ethernet
Floppy: SuperDrive
Bays: 1 3.5" half-height
Slots: 2 Nubus, 1 Quadra PDS
Video: 512K-2 MB VRAM drives all Mac monitors plus some VGA, SVGA, NTSC
Audio: Mono in, stereo out, microphone
Network: LocalTalk, Ethernet
Dimension: 5.5 x 11.9 x 14.4 in, 14.0 x 30.2 x 36.5 cm
Weight: 13.7 lb., 6.2 kg
Sold: 10/91 till
Features:
Quadra 800
Processor: M68040 33 Mhz
System: 7.1
RAM: 8-132 MB, 60 ns, 4 72 pin SIMM slots
ROM: 1 MB
Ports: 2 ADB, 2 serial, SCSI, video, stereo out, mono in, AAUI-15 Ethernet
Floppy: SuperDrive
Bays: 1 3.5" full-height, 1 5.25" half-height removable
Slots: 3 NuBus, 1 Quadra PDS
Video: 512K-1 MB VRAM drives all Mac monitors plus some VGA, SVGA, NTSC
Audio: Mono in, stereo out
Network: LocalTalk, Ethernet
Size: 14.25 x 8.9 x 16 in, 25.3 lbs (30.6 x 19.6 x 39.6 cm, 11.5 kg)
Sold: 2/93 till present
Features:
Quadra 840av
Processor: M68040 40 Mhz, AT&T 3210 66 MHz DSP
System: 7.1
RAM: 8-128 MB, 60 ns, 4 72 pin SIMM slots
ROM: 2 MB
Ports: ADB, SCSI, 2 serial, Ethernet AAUI-15, stereo in, stereo out,
GeoPort, 2 S-Video and two composite video ports, one each for
input and output.
Slots: 3 Nubus 90, 1 Quadra PDS
Floppy: SuperDrive
Bays: 1 3.5" full-height, 1 5.25" half-height removable
Video: Built-in support Expandable with an extra 1 MB VRAM to 24-bit
color on 16" monitors, 16-bit color on larger monitors,
NTSC out, PAL out
Audio: 16 bit, 8-48 kHz, mono microphone, stereo speaker
Network: Ethernet, LocalTalk
Size: 14.25 x 8.9 x 16 in, 25.3 lb (30.6 x 19.6 39.6 cm, 11.5 kg)
Sold: 7/93 till Present
Features: DMA, async SCSI, PlainTalk, video capture
Quadra 900
Processor: M68040 25 Mhz
System: 7.1
RAM: 4-256 MB, 80 ns, 16 30 pin SIMM slots
ROM: 1 MB
Ports: 2 ADB, 2 serial, SCSI, video, stereo out, stereo in, AAUI-15 Ethernet
Floppy: SuperDrive
Bays: 3 3.5" half-height bays
Slots: 5 Nubus, 1 Quadra PDS
Video: 1-2 MB VRAM drives all Mac monitors plus some VGA, SVGA, NTS
Audio: Mono Microphone, stereo in, stereo out
Network: LocalTalk, Ethernet
Size: 18.6 x 8.9 x 20.6 in, 37 lbs (47.3 x 22.4 x 52.3 cm, 17 kg)
Sold: 10/91 till 5/92
Quadra 950
Processor: M68040 33 Mhz
System: 7.1
RAM: 8-256 MB, 80 ns, 16 30 pin SIMM slots
ROM: 1 MB
Ports: 2 ADB, 2 serial, SCSI, video, stereo out, stereo in, mono in,
AAUI-15 Ethernet connector
Floppy: SuperDrive
Bays: 3 3.5" half-height bays
Slots: 5 Nubus, 1 Quadra PDS
Video: 1-2 MB VRAM drives all Mac monitors plus some VGA, SVGA, NTS
Audio: Mono Microphone, stereo in, stereo out
Network: LocalTalk, Ethernet
Size: 18.6 x 8.9 x 20.6 in, 37 lbs (47.3 x 22.4 x 52.3 cm, 17 kg)
Sold: 5/92 till Present
Features:
Mac TV
Processor: M68030 32 MHz
System: 7.1, System Enabler 404 1.0
RAM: 5-8 MB, 80 ns, 1 72 pin SIMM slot
ROM: 1 MB
Ports: SCSI, 2 serial, 2 ADB, cable, video-in, stereo out, stereo in
Floppy: SuperDrive
Bays: 1 3.5" half-height, 1 5.25" half-height removable
Slots: 1 PDS occupied by TV tuner
Video: 14" Trinitron, 8-bit color
Audio: 8-bit, 22kHz, stereo speakers
Network: LocalTalk
Size: 17.5 x 13.5 x 16.5 in., 41.5 lbs (44.5 x 34.4 x 42.0 cm, 18.9 kg)
Sold: 10/93 till Present
Features: cable-ready, 16-bit color TV, CD-ROM, single-frame
video-capture, remote control, ClarisWorks, 7 CD's, keyboard
PowerMac 6100/60
Processor: PPC 601 60 MHz
System: 7.1.2
RAM: 8-72 MB, 80 ns, 2 72 pin SIMM slots
ROM: 4 MB
Ports: ADB, SCSI, 2 GeoPort, video, stereo in, stereo out,
AAUI-15 Ethernet
Floppy: SuperDrive
Bays: 1 3.5" half-height, 1 5.25" half-height removable
Slots: 1 7" Nubus or PDS slot
Video: DRAM based, 32,768 colors on 14" monitors, 256 colors on
16" monitors
Audio: 22 KHz, mono microphone, stereo speaker
Network: LocalTalk, Ethernet
Size: 3.4 x 16.3 x 15.6 in, 14.0 lbs (8.5 x 41.5 x 39.7 cm, 6.4 kg)
Sold: 3/14/94 till Present
Features: Optional AV configuration, optional VRAM card for the
PDS slot
PowerMac 7100/66
Processor: PPC 601 66 MHz
System: 7.1.2
RAM: 8-136 MB, 80 ns, 4 72 pin SIMM slots
ROM: 4 MB
Ports: 2 ADB, SCSI, 2 GeoPort, 2 video, stereo in, stereo out, AAUI-15 Ethernet
Floppy: SuperDrive
Bays: 1 3.5" half-height, 1 5.25" half-height removable
Slots: 3 Nubus, one PDS (occupied by AV card or VRAM card)
Video: 1-2 MB VRAM drives all Mac monitors plus some VGA, SVGA, NTSC,
and PAL monitors. DRAM support for a second monitor, 32,768
colors on 14" monitors, 256 colors on 16" monitors
Audio: 22 khz, Mono microphone, stereo speaker
Network: LocalTalk, Ethernet
Size: 6.0 x 13.0 x 16.5 in, 25 lb (15.2 x 33.0 x 41.9 cm, 11.3 kg)
Sold: 3/14/94 till present
Features: Optional AV configuration
PowerMac 8100/80
Processor: PPC 601 80 MHz
System: 7.1.2
RAM: 8-264 MB, 80 ns, 8 72 pin SIMM slots
ROM: 4 MB
Ports: ADB, 2 GeoPort, SCSI, 2 video, stereo in, stereo out, AAUI-15 Ethernet
Floppy: SuperDrive
Bays: 1 3.5" full-height, 1 5.25" half-height removable
Slots: 3 NuBus, 1 PDS (occupied by AV card or VRAM card)
Video: 2-4 MB VRAM drives all Mac monitors plus some VGA, SVGA, NTSC
and PAL monitors. DRAM support for a second monitor, 32,768
colors on 14" monitors, 256 colors on 16" monitors
Audio: stereo speaker
Network: LocalTalk, Ethernet
Size: 14.25 x 8.9 x 16 in, 25.3 lbs (30.6 x 19.6 x 39.6 cm, 11.5 kg)
Sold: 3/14/94 till present
Features: Optional AV configuration, 256K L2 cache
Macintosh Portable
Processor: M68000 16 MHz
System: 6.0.5-7.1.1
RAM: 1-5 MB, 100 ns, 1 memory slot
ROM: 256K
Ports: SCSI, floppy, stereo out
Floppy: 1-2 SuperDrives
Bays: 1 3.5 inch half-height
Slots: None
Video: built-in black and white 10" monitor, 640 by 400 resolution
Audio: Stereo out
Network: LocalTalk
Sold: 9/89 till 10/91
Features: Portables sold after March, 1991 have backlit screens.
Powerbook 100
Processor: M68000 16 MHz
System: 6.0.8L-7.1.1
RAM: 2-8 MB, 100 ns, 1 TSOP memory slot
ROM: 256K
Ports: SCSI, serial, floppy, ADB, mono out
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: None
Video: built-in black and white, passive matrix, 640 by 400 pixel screen
Audio: 8-bit, 11 or 22 KHz, mono speaker
Network: LocalTalk
Size: 2.25 x 11.25 x 9.3 in., 6.8 lbs. (5.7 x 28.6 x 23.6 cm, 3.1 kg)
Sold: 10/91 till
Features: The hard disk can be attached to another Mac through the PowerBook's SCSI port.
Powerbook 140
Processor: M68030 16 MHz
System: 7.0.1-7.1.1
RAM: 4-8 MB, 100 ns, 1 TSOP memory slot
ROM: 1 MB
Ports: ADB, 2 serial, SCSI, mono in, stereo out
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: None
Video: built-in 10", B/W, passive matrix, 640 by 400 pixel screen
Audio: 8-bit, 11 or 22 KHz stereo speaker, mono microphone
Network: LocalTalk
Battery: NiCad, 2.5 Ah, 2 to 3 hours of usage, 3 hours recharge time
Size: 2.25 x 11.25 x 9.3 in., 6.8 lbs. (5.7 x 28.6 x 23.6 cm, 3.1 kg)
Sold: 10/91 till 6/93
Features:
Powerbook 145
Processor: M68030 25 MHz
System: 7.0.1-7.1
RAM: 4-8 MB, 100 ns, 1 TSOP memory slot
ROM: 1 MB
Ports: ADB, 2 serial, SCSI, mono in, stereo out
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: None
Video: built-in 10", B/W, passive matrix, 640 by 400 pixel screen
Audio: 8-bit, 11 or 22 KHz, mono speaker, mono microphone
Network: LocalTalk
Battery: NiCad, 2.5 Ah, 2 to 3 hours of usage, 3 hours recharge time
Size: 2.25 x 11.25 x 9.3 in., 6.8 lbs. (5.7 x 28.6 x 23.6 cm, 3.1 kg)
Sold: 8/92 till 6/93
Features:
Powerbook 145b
Processor: M68030 25 MHz
System: 7.0.1-7.1
RAM: 4-8 MB, 100 ns, 1 TSOP memory slot
ROM: 1 MB
Ports: ADB, 2 serial, SCSI, audio in, audio out
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: 1 Modem slot
Video: built-in 10", B/W, passive matrix, 640 by 400 pixel screen
Audio: 8-bit, 11 or 22 KHz, mono speaker, mono microphone
Network: LocalTalk
Battery: NiCad, 2 to 3 hours of usage, 3 hours recharge time
Size: 2.25 x 11.25 x 9.3 in., 6.8 lbs. (5.7 x 28.6 x 23.6 cm, 3.1 kg)
Sold: 6/93 till Present
Features: No system disks are included with this model.
Powerbook 160
Processor: M68030 25 MHz
System: 7.1, System Enabler 131 1.0.3
RAM: 4-14 MB, 85 ns, 1 TSOP memory slot
ROM: 1 MB
Ports: ADB, SCSI, 2 serial, mono in, stereo out, video
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: 1 Modem slot
Video: built-in 10", 16 greys, passive matrix, 640 by 400 pixels
Audio: 8-bit, 11 or 22 KHz, stereo speaker, mono microphone
Network: LocalTalk
Battery: NiCad, 2 to 3 hours of usage, 3 hours recharge time
Size: 2.25 x 11.25 x 9.3 in., 6.8 lbs. (5.7 x 28.6 x 23.6 cm, 3.1 kg)
Sold: 10/92 till 8/93
Features:
Powerbook 165
Processor: M68030 33 MHz
Sysytem: 7.1, System Enabler 131 1.0.3
RAM: 4-14 MB, 85 ns, 1 TSOP memory slot
ROM: 1 MB
Ports: ADB, SCSI, 2 serial, mono in, stereo out, video
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: 1 modem slot
Video: built-in 640 by 400 pixel passive matrix screen, 16 grays;
video out for up to 256 colors at 640 by 480 on an external display
Audio: 8-bit, 11 or 22 KHz, mono speaker, mono microphone
Network: LocalTalk
Size: 2.25 x 11.25 x 9.3 in., 6.8 lbs. (5.7 x 28.6 x 23.6 cm, 3.1 kg)
Sold: 8/93 till present
Features:
Powerbook 165c
Processor: M68030 33 MHz, M68882 FPU
Sysytem: 7.1, System Enabler 131 1.0.3
RAM: 4-14 MB, 85 ns, 1 TSOP memory slot
ROM: 1 MB
Ports: ADB, SCSI, 2 serial, mono in, stereo out, video
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: 1 modem slot
Video: built-in 9", 256 color, passive matrix screen, 640 by 400 pixels;
video out for up to 256 colors at 640 by 480 on an external display
Audio: 8-bit, 11 or 22 KHz, stereo speaker, mono microphone
Network: LocalTalk
Battery: NiCad, 1.5 to 2 hours of usage, 3 hours recharge time
Size: 2.29 x 11.25 x 9.3 in., 7.0 lbs. (5.7 x 28.6 x 23.6 cm, 3.2 kg)
Sold: 2/93 till present
Features:
Powerbook 170
Processor: M68030 25 MHz, M68882 FPU
Sysytem: 7.0.1-7.1
RAM: 2-8 MB, 100 ns, 1 TSOP memory slot
ROM: 1 MB
Ports: ADB, 2 serial, SCSI, stereo out
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: 1 modem slot
Video: Black and White, active matrix
Audio: 8-bit, 11 or 22 KHz, stereo speaker, mono microphone
Network: LocalTalk
Sold: 10/91 till present
Features:
Powerbook 180
Processor: M68030 33 MHz, M68882 FPU
Sysytem: 7.1, System Enabler 131 1.0.3
RAM: 4-14 MB, 85 ns, 1 TSOP memory slot
ROM: 1 MB
Ports: ADB, 2 serial, SCSI, mono in, stereo out, video-out
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: 1 Modem slot
Video: built-in 10" active-matrix, 16 greys, 640 by 400 pixels, 77 dpi;
video out for up to 256 colors at 640 by 480 on an external display
Audio: 8-bit, 11 or 22 KHz, mono microphone, mono speaker
Network: LocalTalk
Battery: NiCad, 2.5 to 3 hours of usage, 3 hours recharge time
Size: 2.25 x 11.25 x 9.3 in., 6.8 lbs. (5.7 x 28.6 x 23.6 cm, 3.1 kg)
Sold: 10/19/92 till present
Features:
Powerbook 180c
Processor: M68030 33 MHz, M68882 FPU
Sysytem: 7.1, System Enabler 131 1.0.3
RAM: 4-14 MB, 85 ns, 1 TSOP memory slot
ROM: 1 MB
Ports: ADB, 2 serial, SCSI, mono in, stereo out, video-out
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: 1 modem slot
Video: built-in 10" active-matrix, 256 colors, 640 by 400 pixels, 77 dpi;
video out for up to 256 colors at 640 by 480 on an external display
Audio: 8-bit, 11 or 22 KHz, mono microphone, mono speaker
Network: LocalTalk
Battery: Nickel-cadmium, 1 to 2 hours of usage
Size: 2.25 x 11.25 x 9.3 in., 6.8 lbs. (5.7 x 28.6 x 23.6 cm, 3.1 kg)
Sold: 6/93 till present
Features:
Powerbook 520
Processor: M68LC040 25 MHz
System: 7.1.2, PowerBook 500 Series Enabler 1.0.2
RAM: 4-36 MB, 85 ns, 1 TSOP memory slot
ROM: 1 MB
Ports: ADB, serial, SCSI, stereo in, stereo out, video-out, AAUI Ethernet
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: modem slot, 68040 PDS slot, optional Type II/III PCMCIA adaptor
Video: built-in 9.5" passive-matrix, 16 grays, 640 by 480 pixels, 84 dpi;
video out for up to 256 colors at 832 by 624 on an external display
Audio: 16-bit, 44 KHz, mono microphone, stereo speaker
Network: LocalTalk
Battery: one or two nickel-metal-hydride, 2 to 3 hours usage per battery
Size: 2.25 x 11.5 x 9.65 in., 6.8 lbs. (5.7 x 28.6 x 23.6 cm, 3.1 kg)
Sold: 5/16/94 till present
Features: Trackpad
Powerbook 520c
Processor: M68LC040 25 MHz
System: 7.1.2, PowerBook 500 Series Enabler 1.0.2
RAM: 4-36 MB, 85 ns, 1 TSOP memory slot
ROM: 1 MB
Ports: ADB, serial, SCSI, stereo in, stereo out, video-out, AAUI Ethernet
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: modem slot, 68040 PDS slot, optional Type II/III PCMCIA adaptor
Video: built-in 9.5" passive-matrix, 256 colors, 640 by 480 pixels, 84 dpi;
video out for up to 256 colors at 832 by 624 on an external display
Audio: 16-bit, 44 KHz, mono microphone, stereo speaker
Network: LocalTalk
Battery: one or two nickel-metal-hydride, 2 to 3 hours usage per battery
Size: 11.5 x 9.65 x 2.25 inches, 6.8 lbs.
Sold: 5/16/94 till present
Features: Trackpad
Powerbook 540
Processor: M68LC040 33 MHz
System: 7.1.2, PowerBook 500 Series Enabler 1.0.2
RAM: 4-36 MB, 85 ns, 1 TSOP memory slot
ROM: 1 MB
Ports: ADB, serial, SCSI, mono in, stereo out, video-out, AAUI Ethernet
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: modem slot, 68040 PDS slot, optional Type II/III PCMCIA adaptor
Video: built-in 9.5" active-matrix, 64 grays, 640 by 480 pixels, 84 dpi;
video out for up to 256 colors at 832 by 624 on an external display
Audio: 16-bit, 44 KHz, mono microphone, stereo speaker
Network: LocalTalk
Battery: one or two nickel-metal-hydride, 2 to 3 hours usage per battery
Size: 2.25 x 11.5 x 9.65 in. in., 6.8 lbs. (5.7 x 28.6 x 23.6 cm, 3.1 kg)
Sold: 5/16/94 till present
Features: Trackpad
Powerbook 540c
Processor: M68LC040 33 MHz
System: 7.1.2, PowerBook 500 Series Enabler 1.0.2
RAM: 4-36 MB, 85 ns, 1 TSOP memory slot
ROM: 1 MB
Ports: ADB, serial, SCSI, stereo in, stereo out, video-out, AAUI Ethernet
Floppy: SuperDrive
Bays: 1 2.5" third-height
Slots: modem slot, 68040 PDS slot, optional Type II/III PCMCIA adaptor
Video: built-in 9.5" active-matrix, 256 colors at 640 by 480 pixels,
32768 colors at 640 by 400 pixels, 84 dpi; video out for up to
256 colors at 832 by 624 on an external display
Audio: 16-bit, 44 KHz, mono microphone, stereo speaker
Network: LocalTalk
Battery: one or two nickel-metal-hydride, 2 to 3 hours usage per battery
Size: 2.25 x 11.5 x 9.65 in. in., 6.8 lbs. (5.7 x 28.6 x 23.6 cm, 3.1 kg)
Sold: 5/16/94 till present
Features: Trackpad
Duo 210
Processor: M68030 33 MHz
System: 7.1, PowerBook Duo Enabler 1.0
RAM: 4-24 MB, 85 ns, 1 memory slot
ROM: 1 MB
Ports: Serial Port, 152 pin PDS (for docking station)
Floppy: None
Bays: 1 2.5" third-height
Slots: 1 modem slot
Video: built-in 9" passive-matrix 16 greys screen, 640 by 400 pixels, 85 dpi
Audio: 8-bit, 11 or 22 KHz, mono microphone, mono speaker
Network: LocalTalk
Battery: Nickel hydride, 2 to 4 hours of usage
Size: 8.5 x 10.9 x 1.4 in., 4.2 lbs. (21.6 x 27.7 x 3.6 cm, 1.9 kg)
Sold: 10/92 till present
Features: External floppy drives and docking stations sold separately.
Duo 230
Processor: M68030 33 MHz
System: 7.1, PowerBook Duo Enabler 1.0
RAM: 4-24 MB, 85 ns, 1 memory slot
ROM: 1 MB
Ports: Serial Port, 152 pin PDS (for docking station)
Floppy: None
Bays: 1 2.5" third-height
Slots: 1 modem slot
Video: built-in 9" passive-matrix screen, 16 greys, 640 by 400 pixels, 85 dpi
Audio: 8-bit, 11 or 22 KHz, mono microphone, mono speaker
Network: LocalTalk
Size: 8.5 x 10.9 x 1.4 in., 4.2 lbs. (21.6 x 27.7 x 3.6 cm, 1.9 kg)
Sold: 10/92 till present
Features: External floppy drives and docking stations sold separately.
Duo 250
Processor: M68030 33 MHz
System: 7.1, PowerBook Duo Enabler 1.0
RAM: 4-24 MB, 85 ns, 1 memory slot
ROM: 1 MB
Ports: Serial Port, 152 pin PDS (for docking station)
Floppy: None
Bays: 1 2.5" third-height
Slots: 1 modem slot
Video: built-in 9" active-matrix 640 by 400 pixels, 85 dpi
Audio: 8-bit, 11 or 22 KHz, mono microphone, mono speaker
Network: LocalTalk
Battery: Type II nickel metal hydride battery.
Size: 1.5 x 10.9 x 8.5 in., 4.2 lbs. (3.8 x 27.7 x 21.6 cm, 2.2 kg)
Sold: 10/93 till present
Features: External floppy drive and docking stations sold separately.
Duo 270c
Processor: M68030 33 MHz, M68882 FPU
System: 7.1, PowerBook Duo Enabler 1.0
RAM: 4-32 MB, 85 ns, 1 memory slot
ROM: 1 MB
Ports: Serial Port, 152 pin PDS (for docking station)
Floppy: None
Bays: 1 2.5" third-height
Slots: 1 modem slot
Video: built-in 8.4 inch, 93 dpi, active matrix screen; 256 colors at
640 by 480 pixels, 32768 colors at 640 by 400 pixels
Audio: 8-bit, 11 or 22 KHz, mono microphone, mono speaker
Network: LocalTalk
Battery: Type II nickel metal hydride battery, 2 to 4 hours usage
Size: 1.5 x 10.9 x 8.5 in., 4.2 lbs. (3.8 x 27.7 x 21.6 cm, 2.2 kg)
Sold: 10/93 till present
Features: External floppy drive and docking stations sold separately.
Duo 280
Processor: M68LC040 25 MHz
System: 7.1.2, PowerBook Duo Enabler 2.0
RAM: 4-40 MB, 85 ns, 1 memory slot
ROM: 1 MB
Ports: Serial Port, 152 pin PDS (for docking station)
Floppy: None
Bays: 1 2.5" third-height
Slots: 1 modem slot
Video: built-in 9" passive-matrix 64 greys screen, 640 by 400 pixels, 84 dpi
Audio: 16-bit, 44 KHz, mono microphone, stereo speaker
Network: LocalTalk
Battery: Nickel hydride, 2 to 4 hours of usage
Size: 8.5 x 10.9 x 1.4 in., 4.2 lbs. (21.6 x 27.7 x 3.6 cm, 1.9 kg)
Sold: 10/92 till present
Features: External floppy drives and docking stations sold separately.
Duo 280c
Processor: M68LC040 25 MHz
System: 7.1.2, PowerBook Duo Enabler 2.0
RAM: 4-40 MB, 85 ns, 1 memory slot
ROM: 1 MB
Ports: Serial Port, 152 pin PDS (for docking station)
Floppy: None
Bays: 1 2.5" third-height
Slots: 1 modem slot
Video: built-in 9" passive-matrix 256 colors at 640 by 480 pixels,
32768 colors at 640 by 400 pixels, 84 dpi
Audio: 16-bit, 44 KHz, mono microphone, stereo speaker
Network: LocalTalk
Battery: Type III Nickel-metal-hydride, 2 to 4 hours of usage
Size: 8.5 x 10.9 x 1.4 in., 4.8 lbs. (21.6 x 27.7 x 3.6 cm, 1.9 kg)
Sold: 10/92 till present
Features: External floppy drives and docking stations sold separately.
--
Elliotte Rusty Harold Department of Mathematics
elharo@shock.njit.edu New Jersey Institute of Technology
emh0362@hertz.njit.edu Newark NJ 07103
..