The Gemini Galaxy range of computers were of "all British" origin, being manufactured by Gemini Microcomputers Ltd., Amersham, Bucks.
Also called the 'Multiboard Microsystem', the Galaxy systems were built around the 80-BUS, specifically designed for the Z80 microprocessor. They had two Z80A processors, one acting as the CPU and the other running the 'programmable' video card (Called the IVC).
The video card memory was composed of: 2 KB Monitor ROM (SIMON), 2KB User workspace RAM (it was capable of holding user routines), 2 KB Screen RAM, 2KB character generator ROM, 2KB character generator RAM (programmable fonts). Numerous cards were available, like IEEE488 interface card, SASI floppy drive controller or colour graphics card.
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please send us pictures or anything you might find useful.
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I have a Galaxy 1 keyboard (without numeric pad) which I bought with a job lot of other computer stuff at an auction some 30 odd years ago. It has a 15 pin D connector which I presume was used before keyboard connectors were standardised across manufacturers. Is it something you would like?
Tuesday 4th August 2020
Peter Harding (Southampton, UK)
I am very keen to gather and archive as much Gemini software and documentation as I can. These were great machines, however, very little seems to have been kept over the years.
If you can help me preserve this stuff for future generations, please get in touch via john.newcombe@me.com or this forum.
I still have a Gemini Galaxy 2 (GM905) which I used for many years to design printed circuit boards. It is installed with a Pluto IO828 graphics board which ran a CAD-8 design software package. I also have lots of documentation including catalogues, price lists and original advertising material.
Friday 9th February 2018
Paul Terrey (U.K.)
NAME
GALAXY
MANUFACTURER
Gemini
TYPE
Professional Computer
ORIGIN
United Kingdom
YEAR
1983
KEYBOARD
Full stroke keyboard with numeric keypad
CPU
Zilog Z80A
CO-PROCESSOR
second Zilog Z80A running the 'programmable' video card (Called the IVC).
