website/content/museum/litton-monroe-oc-8880.md at b274874139da62c415edee0b7db6dfeacc5f718a

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yann64andClaude Opus 5.5 b274874139 All machines linked to their forum thread (full comment import)

1,289 discussions, 9,527 archived comments; pages no longer carry the comments themselves.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ

2026-10-13 17:26:43 +02:00

2.8 KiB

Raw Blame History

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

title

categories

types

origins

years

cpus

params

Litton - Monroe OC-8880

Computers

Professional Computer

Japan

1981

Z80

name

image

company

company_name

specs

tabs

forum_thread

photos

links

oc_id

source

OC-8880

/media/museum/photos/monroe_oc8880_1.jpg

/companies/litton-monroe

Litton - Monroe

label	value
NAME	OC-8880

label	value
MANUFACTURER	Litton - Monroe

label	value
TYPE	Professional Computer

label	value
ORIGIN	Japan

label	value
YEAR	1981

label	value
BUILT IN LANGUAGE	Unknown

label	value
KEYBOARD	Full stroke keyboard with function keys and numeric keypad. 93 keys.

label	value
CPU	Z80

label	value
SPEED	Unknown

label	value
CO-PROCESSOR	Unknown

label	value
RAM	16 KB (128 KB max)

label	value
ROM	Unknown

label	value
TEXT MODES	Unknown

label	value
GRAPHIC MODES	Unknown

label	value
COLORS	Unknown

label	value
SOUND	Unknown

label	value
SIZE / WEIGHT	Unknown

label	value
I/O PORTS	External disk drive, expansion bus, composite video output (monochrome), AUX serial I/O, COMM I/O, parallel printer interface

label	value
BUILT IN MEDIA	One 5.25'' disk drive (300 KB)

label	value
OS	CP/M

label	value
POWER SUPPLY	PSU built-in

label	value
PERIPHERALS	Unknown

label	value
PRICE	Unknown

photos

links

560

title	subtitle	text	image
OC 8880		Thanks to [Jan Soderberg](http://w1.184.telia.com/~u18407217/) for this picture.	/media/museum/photos/monroe_oc8880_2.jpg

title	subtitle	text	image
SIDE		Notice the on/off switch on the side of the case. Thanks to [Jan Soderberg](http://w1.184.telia.com/~u18407217/) for this picture.	/media/museum/photos/monroe_oc8880_side.jpg

title	subtitle	text	image
REAR		Thanks to [Jan Soderberg](http://w1.184.telia.com/~u18407217/) for this picture.	/media/museum/photos/monroe_oc8880_rear.jpg

title	url	text
Jan Söderberg Monroe's page	http://w1.184.telia.com/~u18407217/monroe/monroe.html	Some pictures and a nice description

title	url	text
Litton-Monroe history	http://www.datamath.org/Featured_Companies.htm	You will find here a small Litton-Monroe's history

569

url	date
https://web.archive.org/web/20221128054726/http://www.old-computers.com/museum/computer.asp?c=569	2022-11-28

Info needed about this obscure CP/M computer!

Monroe - a subsidary of Litton Inc. - used to produce and sell calculators for years from 1912.

Very little is known about this CP/M system. To use the floppies you had to type in OPEN FPY0:

Thanks to Jan Söderberg for the pictures.

2.8 KiB Raw Blame History

2.8 KiB

Raw Blame History