website/content/museum/litton-monroe-oc-8820.md

title, categories, types, origins, years, cpus, params

title	categories	types	origins	years	cpus	params
Litton - Monroe OC-8820	Computers	Professional Computer	U.S.A.	1982	Z80	name image company company_name specs tabs forum_thread photos adverts hardware oc_id source OC-8820 /media/museum/photos/monroe_8820_system_s2.jpg /companies/litton-monroe Litton - Monroe label value NAME OC-8820 label value MANUFACTURER Litton - Monroe label value TYPE Professional Computer label value ORIGIN U.S.A. label value YEAR 1982 label value BUILT IN LANGUAGE The Monroe BASIC was an extended version of the BASIC used in the Luxor ABC80/ABC800 computers. label value KEYBOARD Typewriter type, 93 keys with numeric keypad & function keys label value CPU Z80 label value SPEED Unknown label value RAM 128 to 256 KB label value VRAM 16 KB label value ROM Unknown label value TEXT MODES 80 columns x 25 lines label value GRAPHIC MODES None label value COLORS Monochrome amber label value SOUND Unknown label value SIZE / WEIGHT Unknown label value I/O PORTS 1 parallel and 1 serial port label value BUILT IN MEDIA 2 x 300 KB 5.25 floppy-disk drives label value OS Proprietary Monroe OS called OS8MT (MT for multi-tasking), CP/M label value POWER SUPPLY Built-in PSU label value PERIPHERALS 10 MB hard-disk unit label value PRICE about $3,000 photos adverts hardware 1048 title subtitle text image FRONT VIEW Thanks to **Chris Kelepouris** /media/museum/photos/monroe_8820_system_s1.jpg title subtitle text image KEYBOARD CLOSE-UP Thanks to **Bob Heptig** for all the following pictures. /media/museum/photos/monroe_8820_keyboard_s1.jpg title subtitle text image OPENED #1 /media/museum/photos/monroe_8820_inside_s1.jpg title subtitle text image OPENED #2 /media/museum/photos/monroe_8820_opened_s1.jpg title subtitle text image INSIDE Main board and FDD controller card. /media/museum/photos/monroe_8820_electronics_s1.jpg title subtitle text image MONROE ORIGINAL DISKETTES /media/museum/photos/monroe_8820_diskettes_s1.jpg title subtitle text image MONROE ADVERT, FEB. 1983 /media/museum/pubs/monroe_8820_pub0283_s1.jpg title subtitle text image 10 MB HDD UNIT Thanks to **Chris Kelepouris**, the proud owner of an OC-8820 /media/museum/hardware/monroe_8820_hddunit_s1.jpg title subtitle text image INSIDE THE HDD UNIT /media/museum/hardware/monroe_8820_hddunit_s2.jpg 1078 url date https://web.archive.org/web/20230608081221/http://www.old-computers.com/museum/computer.asp?c=1078 2023-06-08

The Monroe OC-8820 was an all-in one Z80 based system featuring 128 to 256 KB of RAM, a monochrome CRT and a dual 5.25" 300 KB floppy disk drive.

It used its own multitask operating system, but a CP/M OS could be acquired separately along with a specific Monroe BASIC interpreter, Dbase II, Wordstar and a spreadsheet (probably CalcStar). Even under CP/M, You could run the a Spreadsheet report and still run Wordstar.

A 10 MB hard-disk drive unit was also available.

The Monroe computer family also had a color graphics model, but we have no information about it.