Editing Xerox 820 (section)

{{Short description|Desktop computer developed by Xerox}}
{{Infobox information appliance
| name = Xerox 820
| image = [[File:Xerox 820.jpg|300px]]
| caption = Xerox 820
| manufacturer = [[Xerox]]
| type = 
| releasedate = {{Start date and age|1981|6}}
| discontinued = 1985
| connectivity = 
| lifespan = 
| unitssold = 
| media = 96 [[kilobyte|kB]] 5¼-inch [[floppy disk]]s, 300&nbsp;kB 8-inch [[floppy disk]]s
| os = [[CP/M]] 2.2
| input = [[Keyboard (computing)|Keyboard]]
| power = 
| cpu = [[Zilog Z80]]A clocked at 2.5 [[MHz]]
| storage = 
| memory = 64 [[kilobyte|KB]] [[RAM]], 4&nbsp;KB to 8&nbsp;KB [[Read-only memory|ROM]]
| display = Mono CRT, 80 x 24 characters text, two intensity levels
| audio = 
| service = <!-- online service/s offered -->
| dimensions = 32.8 × 38.1 × 34.3 cm
| weight = {{convert|13.6|kg|lb|abbr=on}}
| touchpad = 
| predecessor = 
| successor = 
| related = 
| graphics = [[Transistor–transistor logic|TTL]] / [[composite video]] CRT interface
}}
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.<ref>{{Cite web |title=Xerox 820 Microcomputer |url=http://www.longleaf.net/ggrow/xerox-ibm.html |access-date=2022-11-25 |website=www.longleaf.net}}</ref> The microprocessor board is a licensed variant of the [[Ferguson Big Board|Big Board]] computer.