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G > GEMINI  > GALAXY   


Gemini
GALAXY

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.

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.
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).
RAM  64 KB dynamic
VRAM  2 KB
ROM  2 KB Phantom Bootstrap ROM
TEXT MODES  80 x 25
GRAPHIC MODES  160 x 75
COLORS  Unknown
I/O PORTS  Centronics, RS232, Light Pen, Tape
BUILT IN MEDIA  Two 5.25'' disk-drives
OS  CP/M 2.2 and MP/M
POWER SUPPLY  Unknown
PRICE  Unknown

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