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macintosh portable


Minimum OS: 6.0.4

Maximum OS: 7.5.5

Introduced: Sept 1989

Terminated: Oct 1991


Processor

CPU: Motorola MC68000

CPU Speed: 16 MHz

FPU: none

Bus Speed: 16 MHz

Register Width: 32-bit

Data Bus Width: 16-bit

Address Bus Width: 32-bit

ROM: 256 kB

RAM Type: proprietary

Min RAM Speed: 100 ns

Onboard RAM: 1 MB

RAM slots: 1

Maximum RAM: 8 MB


Video

Screen: 1-bit active matrix (backlit after 2/91)

Max Resolution: 640x400


Storage

Hard Drive: optional 40 MB

Floppy Drive: 1 or 2 1.4 MB SuperDrive


Input/Output

ADB: 1

Serial: 2 Mini DIN-8

SCSI: DB-25

Audio Out: stereo 8 bit 

macintosh portable


Apple entered the portable computer market in 1989. Essentially a macintosh plus with an LCD screen, the portable was an utter failure due to its clunky design, high price, and poor performance.  Apple went back to the drawing board and re-entered the market in 1991 with the powerbook, which set the standard for notebooks in ways that still influence them today. 


This first portable macintosh was shipped with Mac OS 6.0.4, weighed nearly 8 kilograms and had a hard drive with up to 40 megabytes. The processor was a motorola 68000 16 MHz clock rate and 0.5 KB of L1 cache. For an additional cost of several thousand dollars, the memory could extend from one to nine megabytes. 


The active matrix display with 9.8" supported a resolution of 640x400 pixels. Therefore considerably less than an ipad. The macintosh portable was very bulky, heavy, slowly and leaving almost not expand - and cost at least $6,500.