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Last modified 2010-08-13

Acorn Atom

Type:8-bit home computer
CPU:MOS 6502 @ 1 MHz
Operating system:Atom Basic
Memory:ROM: 8 KB (Expandable to 12 KB)
RAM: 2-12 KB
Sound:One channel. Built-in speaker
Graphics:64*64 pixels (4 colors)
64*96 pixels (4 colors)
64*192 pixels (4 colors)
128*192 pixels (2 colors)
128*96 pixels (Monochrome)
256*192 pixels (Monochrome)
Storage:External tape recorder. 100 KB 5-inch floppy option
Input:Integrated keyboard
I/O ports:Printer port (Centronics)
Expansion port
UHF video output
Voltage:8 VDC, external PSU
Power consumption:Max 1.5 A (A fully expanded Atom needed almost 3 A!!)
Dimensions (W*H*D):381*64*241 mm
Weight:? Kg (? lbs)
Manufactured:England, 1980-1983 (Discontinued)
Related documents:
Modifications:The Atom need to have its internal 5 VDC regulators
bypassed and powered by a heavier PSU with 5 VDC
and at least 3 A rating when fully expanded.
Notable "ham" software: