Macintosh Classic Specs @ EveryMac.com

Apple Macintosh Classic Specs

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Redesigned essentially as a more modern, and less expensive, interpretation of the Macintosh Plus, the Apple Macintosh Classic features an 8 MHz 68000 processor, 1 MB of 2 MB of RAM and either a 1.44 MB disk drive or a 1.44 MB disk drive and a 40 MB hard drive in a sleek, compact all-in-one case with a 9" monochrome display.

Although it was slow for its day, the Macintosh Classic notably was the first Mac to sell starting just under US$1000.

To purchase or upgrade a vintage Mac -- as well as newer Macs -- see site sponsor OHS.

Click on the underlined category text for related details. The most commonly needed info is "open" by default, but all info is important.

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Introduction Date:

October 15, 1990

Discontinued Date:

September 14, 1992

Details:

The "Introduction Date" refers to the date a model was introduced via press release. The "Discontinued Date" refers to the date a model either was replaced by a subsequent system or production otherwise ended.

Also see: All Macs introduced in 1990.

Processor Speed:

8 MHz

Processor Type:

68000

Details:

This model has a 32-bit processor. It has a 16-bit data path.

Processor Upgrade:

N/A

FPU:

N/A

Details:

N/A

System Bus Speed:

8 MHz

Cache Bus Speed:

N/A

Details:

N/A

ROM/Firmware Type:

Macintosh ROM

ROM/Firmware Size:

512k

Details:

N/A

L1 Cache:

None

L2 Cache:

N/A

Details:

N/A

RAM Type:

30-pin SIMM

Min. RAM Speed:

120 ns

Details:

N/A

Standard RAM:

1 MB, 2 MB*

Maximum RAM:

4 MB*

Details:

*For more than the 1 MB of onboard RAM, a Classic-specific "Memory Expansion Card" is required. This expansion card has an additional 1 MB onboard and two SIMM slots for memory expansion.

Motherboard RAM:

1 MB

RAM Slots:

Details:

*Two RAM slots provided by the "Memory Expansion Card." SIMMs must be installed in pairs on this card.

Video Card:

Integrated

VRAM Type:

Built-in

Details:

N/A

Standard VRAM:

N/A

Maximum VRAM:

N/A

Details:

N/A

Built-in Display:

9" Monochrome

Native Resolution:

512x342

Details:

N/A

Standard Hard Drive:

None, 40 MB

Int. HD Interface:

SCSI*

Details:

*Could be configured with a 40 MB SCSI internal hard drive. Hard drive standard on M0435LL/A configuration.

Standard Optical:

None

Standard Disk:

1.44 MB (Auto)

Details:

N/A

Standard Modem:

None

Standard Ethernet:

None

Details:

N/A

Expansion Slots:

None

Expansion Bays:

None*

Details:

*If configured without an internal hard drive, one internal 3.5" bay is available.

Case Type:

All-in-One

Form Factor:

Macintosh Classic

Details:

N/A

Apple Order No:

M0421LL/A*

Apple Subfamily:

Macintosh Classic

Details:

*M0421LL/A is configured with 1 MB of RAM and a 1.44 MB floppy disk. The standard configuration with 2 MB of RAM and a 40 MB hard drive was assigned order number M0435LL/A.

Apple Model No:

M0420, M1420

Gestalt ID:

Details:

N/A

Battery Type:

3.6V Lithium

Battery Life:

N/A

Details:

N/A

Original Mac OS:

6.0.7

Supported Mac OS:

6.0.7-7.5.1, 7.5.3-7.5.5

Details:

Earlier and later versions of the Macintosh System/Finder and Mac OS are not supported.

For systems capable of running older versions of the Mac OS -- as well as modern ones -- please see site sponsor OHS. OHS specializes in heavily upgraded Macs capable of running both Mac OS X and Mac OS 9 applications.

Dimensions:

13.2 x 9.7 x 11.2

Avg. Weight:

16.0 lbs (7.3 kg)

Details:

In inches - height by width by depth, (35.5 cm, 24.6 cm, 28.4 cm).

Original Price:

US$999, US$1499

Est. Current Retail:

N/A*

Details:

*As a collector's item, it still may retain value.

Photo Credit: Apple Computer, Inc. (MacUser Magazine Ad).

Click on the underlined category text for additional details. The most commonly needed info is "open" by default, but all info is important. The icons correspond with the icons for each port on the computer.

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Video (Monitor):

None

Floppy (Ext.):

1 (DB-19)

Details:

N/A

ADB:

SCSI:

1 (DB-25)

Details:

N/A

Serial (Standard):

Serial (Geoport):

None

Details:

Serial ports are marked by printer and modem icons.

Modem:

None

Ethernet:

None

Details:

N/A

S-Video Input:

None

S-Video Output:

None

Details:

N/A

Microphone:

None

Sound In:

None

Details:

N/A

Sound Out:

1 (Mono)

Headphone:

None

Details:

N/A

Security (Lock):

Joystick (PC):

None

Details:

N/A

FM Tuner:

None

TV Tuner:

None

Details:

N/A

Power:

Power Adapter:

N/A

Details:

120V AC, 47-63 Hz Frequency, 76 Max Watts.

Icon Credit: Apple Computer, Inc.

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