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.