Xerox 820
Desktop computer developed by Xerox / From Wikipedia, the free encyclopedia
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The Xerox 820 Information Processor is an 8-bit desktop computer sold by Xerox in the early 1980s. The computer runs under the CP/M operating system and uses floppy disk drives for mass storage.[1] The microprocessor board is a licensed variant of the Big Board computer.
Quick Facts Manufacturer, Release date ...
Manufacturer | Xerox |
---|---|
Release date | June 1981; 42 years ago (1981-06) |
Discontinued | 1985 |
Media | 96 kB 5¼-inch floppy disks, 300 kB 8-inch floppy disks |
Operating system | CP/M 2.2 |
CPU | Zilog Z80A clocked at 2.5 MHz |
Memory | 64 KB RAM, 4 KB to 8 KB ROM |
Display | Mono CRT, 80 x 24 characters text, two intensity levels |
Graphics | TTL / composite video CRT interface |
Input | Keyboard |
Dimensions | 32.8 × 38.1 × 34.3 cm |
Mass | 13.6 kg (30 lb) |
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