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Last modified 2026-01-29

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Atari Portfolio

A picture of Atari Portfolio

SPECIFICATIONS

GENERAL
Type:16-bit home computer
CPU:Intel 80C88 @ 4.9 MHz
Operating system(s):DIP DOS 2.11 (MS-DOS compatible)
Memory:ROM: 256 KB
RAM: 128 KB (Expandable up to 640 KB)
Power supply:4.5 VDC (Three LR6 / AA batteries)
or 6 VDC external
Current drain / power consumption:Max 80 mA
Dimensions (W*H*D):198*29*103 mm (7.79*1.14*4.06"), when shut
Weight:502 g (1.1 lb)




I/O
Keyboard:Integrated
Graphics: 260*64 pixels, monochrome
Text: 40*8 characters
Audio:Beeper
Storage:
External I/O ports:
Expansion bus:   60-pin
RAM card port:   ?
Other:




MISCELLANEOUS
Manufactured:Japan (Designed in the UK & USA), 1989-199x (Discontinued)
Additional info: Built-in Lotus 1-2-3 compatible spreadsheet, text editor/simple word
processor, calculator, file transfer and more.
Related documents:
Modifications and fixes:
Notable "ham" software: Was quite popular by hams for packet operation via terminal software
Reviews:
Some options / Accessories:
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