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General| Manufacturer | Atari |
|---|---|
| Model | 400 |
| Type | Home Computer |
| Release Year | 1979 |
| CPU | MOS Technology 6502 |
| CPU Speed | 1.79 MHz |
| ROM | 10 KB |
| Operating System | Atari OS |
| Keyboard | Membrane keyboard |
| RAM | 8 KB (expandable to 48 KB) |
| Graphics | ANTIC and GTIA chips |
| Sound | 4 channels |
| Display | RF output for connection to TV |
| Storage | Optional cassette tape drive or floppy disk drive |
| Ports | Cartridge |
| Display Resolution | 320x192 (16 colors) |
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