Xerox 820-II
[vin31]
Hardware Specifications
- Processor: Zilog Z80A clocked at 4.0 MHz
- Memory: 64 KB RAM, expandable up to 128 or 256 KB
- Display: 12-inch monochrome CRT, 80 x 24 characters text, with two intensity levels
- Storage: Various options including 5¼-inch and 8-inch floppy drives, and an 8.19MB rigid disk drive
- Operating System: CP/M 2.2
Features
- Improved processor speed compared to the original 820 (4.0 MHz vs 2.5 MHz)
- Two expansion ports on the motherboard for additional functionality
- Two RS-232 serial ports and optional parallel ports
- 96-character ASCII keyboard with numeric keypad and special function keys
Software
- Typically came with CP/M 2.2, diagnostic software, WordStar, and Microsoft BASIC-80
Pricing and Market Position
- Starting price of $3,000 in 1982 (equivalent to about $9,500 in 2023)
Donated by: Arlen Michael