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Macintosh Classic

Macintosh Classic

The economical Classic Mac!
• Priced cheaper than the other Classic Macs like it (Macintosh - Mac SE)!
• The first $999 Macintosh (the stripped model of course).

Mac Classic Close of of Classic
The Macintosh Classic. It looked more like the Macintosh Plus, except it had an internal hard drive.

The back of a Macintosh Classic.

The Mac Classic. What else can you say? Apple came out with this model when the LC and IIsi models were introduced. It was Apple's first attempt to make a cheaper, low cost Macintosh. Its pricing stated out at $999. A Mac for $999? yes but it was the single floppy model, no hard drive. You could add a hard drive later though.

Basically a Mac Plus or Mac SE in newer clothing. The Mac Classic was 25% faster than the Mac Plus, and 5% faster then the Mac SE.

This is not a bad computer, you can press down and hold the Command (Apple) + Option + letter O + letter X keys on startup to access its internal ROM based virtual disk drive. Good if the Mac Classic HD is hosed. This allows you to repair it. I really don't get it, as the floppy drive can reload it. There must be a secret message inside of it, otherwise why is it there?

Another feature was the brightness knob - the Mac Classic did not have one! There was a new Control Panel called "Brightness". It was a cool way to dim or brighten your Mac's screen.

One good thing I have to mention about this Mac. If you need a cheap way to move disk images from an IBM compatible to an older Mac this gem is your ticket! The 1.44MB SuperDrive lets you read an IBM formatted diskette, and will create 400K, 800K and 1.44MB Macintosh disk images. These are not very expensive and is my choice for moving disk images inexpensively.

Here is a link to a Macintosh Classic advertising brochure:

1990 Mac Classic, LC and IIsi introduced.

(Courtesy of

For AppleShare use: I am recommending using System 7.x for this Mac on a network.

For telecommunications use: Can use 9600 baud modem or lower, anything higher may cause problems. Stock Macintosh Classic can be placed on the Internet, with maxed 4MB of RAM memory upgrade.

Hard Drive use: Can use the Apple's HD20 - plugs into the floppy port. Stock Macintosh Classic can use any SCSI hard drive (25 pin port on back). SCSI only - Use a 2:1 interleave.

Color use: Aura Systems created an external box which outputted color from a Macintosh Classic. I looked into this at one point, very expensive, about $2500.

Quick answers to your questions here!

Apple official specs


  • Introduced: 10/15/90
  • Discontinued: 9/14/92
  • Floppy Size: 1.44MB
  • Internal HD: none-40MB
  • Upgrade From: none
  • Upgrade To: Classic II (There are many accelerators available from )
  • Form Factor: Classic
  • Weight: 16 lbs.
  • Dimensions (in): 13.2 H x 9.7 W x 11.2 D

Logic Board

  • Main Processor: 8 MHz 68000
  • PMMU: none
  • FPU: none
  • Data Path: 8 MHz 16-bit
  • Secondary Processor: none
  • Slots: none


  • Memory on Logic Board: 1MB
  • RAM Range: 1MB to 4MB
  • RAM Slots: 4 30-pin SIMM
  • RAM Type: 120 ns 256K, 1MB SIMMs
  • RAM expansion beyond 1MB requires Macintosh Classic 1MB Memory Expansion Card, which has 1MB of additional RAM, and two SIMM conectors. This system cannot use two-chip 1MB SIMMs.


  • Built-in Display: 9" monochrome CRT
  • VRAM Configuration: built-in CRT
  • VRAM Speed: n/a
  • VRAM Expansion: built in
  • Color Bit Depth by Screen Resolution:
  • 512x384: 1-bit
    (1-bit = Black & White, 2-bit = 4 colors, 4-bit = 16 colors, 8-bit = 256 colors, 16-bit = thousands, 24-bit = millions)
  • The maximum color depth listed for 640x870 is 8-bit, reflecting the capabilities of the Apple 15 inch Portrait Display
  • Notes: Screen size is 512x342.


  • Sound In: no
  • Sound Out: mono, 8-bit
  • Microphone Port: none ( A few people have reported that a few newer Classics have one. Maybe it has the back of a Classic II with a Classic II motherboard. While the front still says Classic.)


  • ADB: 1
  • Video: none
  • Floppy: DB-19
  • SCSI: DB-25
  • GeoPorts: none
  • Ethernet: none
  • Microphone Port Type: none
  • Ports: Printer Modem Speaker


  • Max Watts: 76
  • Amps: 0.63
  • BTU per Hr: 259.92
  • Voltage: 120
  • Freq Range: 47-63 Hz
  • Battery Type: 3.6V lithium


  • Addressing Modes: 24-, 32-bit
  • Original System Software: 6.0.7
  • Original Enabler: none
  • ROM ID: $0276
  • ROM Version: n/a
  • ROM Size: 512K
  • AppleTalk Version: 48
  • System Software Supported: 6.0.7 6.0.8 7.0 7.0.1 7.1 7.5 7.5.1 7.5.3 7.5.5

All technical information from

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