| GENERAL |
| Type: | 8-bit home computer |
| CPU: | MOS 6502 @ 1 MHz |
| Operating system(s): | Atom Basic |
| Memory: | ROM: 8 KB (Expandable to 12 KB)
RAM: 2 KB (Expandable to 12 KB) |
| Power supply: | 8 VDC (Male barrel jack) |
| Current drain / power consumption: | Max 1.5 A (A fully expanded Atom needs almost 3 A!) |
| Dimensions (W*H*D): | 381*64*241 mm (15*2.52*9.49") |
| Weight: | ? Kg (? lb) |
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| I/O |
| Keyboard: | Integrated |
| Graphics: |
Motorola MC6847 VDG with 1 KB VRAM (Expandable to 6 KB)
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)
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| Audio: | One channel. Built-in speaker |
| Storage: |
External tape recorder (CUTS, 300 bd)
100 KB 5¼-inch floppy option
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| External I/O ports: |
| Acorn bus: | 64-pin |
| Printer port: | 26-pin |
| Tape I/O: | 7-pin DIN (3 pins used for tape) |
| RF out (TV): | RCA/Phono |
| Video out: | Pin header? (Composite) |
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| Other: | |
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| MISCELLANEOUS |
| Manufactured: | England, 1980-1983 (Discontinued) |
| Additional info: |
New price 1982 in Sweden: SEK 2875:- (Basic model, no options)
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| Related documents: |
Technical manual (331 KB)
Schematic diagram (201 KB)
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| Modifications and fixes: |
The Atom need to have its internal 5 V regulators bypassed
and powered by a heavier PSU with 5 VDC and at least 3 A
rating when fully expanded.
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| Notable "ham" software: | |
| Reviews: | Radio & Television (Sweden): May 1981 (#5) |
| Some options / Accessories: |
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?
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PAL encoder (For color output to TV)
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