website/content/museum/british-micro-mimi-802-803-804.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

2.7 KiB

Raw Blame History

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

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BRITISH MICRO Mimi 802 / 803 / 804

Computers

Professional Computer

United Kingdom

1981

Z80A

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Mimi 802 / 803 / 804

/media/museum/photos/british-micro_mimi-803_1.jpg

/companies/british-micro

BRITISH MICRO

label	value
NAME	Mimi 802 / 803 / 804

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MANUFACTURER	British Micro

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TYPE	Professional Computer

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ORIGIN	United Kingdom

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YEAR	1981

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KEYBOARD	Full stroke keyboard with 17 programmed function keys and a numeric keypad, 96 keys

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CPU	Z80A

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SPEED	4 Mhz

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RAM	64 KB dynamic

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ROM	Unknown

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TEXT MODES	Unknown

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GRAPHIC MODES	Unknown

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COLORS	Unknown

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SOUND	None

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SIZE / WEIGHT	24 lbs

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I/O PORTS	Full RS232C and Centronics parallel ports, Light pen socket

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BUILT IN MEDIA	Two 5.25'' floppy disks, DS/DD,700 KB each

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OS	OS/M operating system - fully CP/M compatible

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POWER SUPPLY	PSU built-in

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PRICE	Unknown

photos

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title	subtitle	text	image
INSIDE THE MIMI-803		Thanks to Richard from www.dragondata.co.uk	/media/museum/photos/britishmicro_mimi803_inside_1.jpg

601

url	date
https://web.archive.org/web/20230214182003/http://www.old-computers.com/museum/computer.asp?c=601	2023-02-14

Nearly nothing is known about these obscure CP/M systems. The technical info is related to the Mimi 802, and the picture illustrates a Mimi 803...

Mimi's at Leicester Polytechnic, by Rob Seaward:
I used one of these at Leicester Polytechnic around 1981/82.
We used to have a lab full of these for students - we were learning FORTRAN and were lectured by Roger Hutty who wrote a very good book in the subject.
I remember we used to boot the machine using a combination of keys (possible shift or control and B if I recollect correctly).
To ensure myself and a friend could always access a machine (particularly when we were close to assignment deadline) we swapped the V and B keys on the keyboard making the machine unuseable to any other student or for that matter the dumbfounded technicians.

We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.

2.7 KiB Raw Blame History

2.7 KiB

Raw Blame History