Click Here to visit our Sponsor
The History of Computing The Magazine Have Fun there ! Buy goodies to support us
  Mistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum









 

Ready prompt T-shirts!

see details
ZX81 T-shirts!

see details
ZX Spectrum T-shirts!

see details
Arcade cherry T-shirts!

see details
Spiral program T-shirts!

see details
Atari joystick T-shirts!

see details
Battle Zone T-shirts!

see details
Vectrex ship T-shirts!

see details
Elite spaceship t-shirt T-shirts!

see details
C64 maze generator T-shirts!

see details
Atari ST bombs T-shirts!

see details
Moon Lander T-shirts!

see details
Competition Pro Joystick T-shirts!

see details
Pak Pak Monster T-shirts!

see details
BASIC code T-shirts!

see details
Vector ship T-shirts!

see details
Pixel adventure T-shirts!

see details
Breakout T-shirts!

see details





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.
Please consider donating your old computer / videogame system to Old-Computers.com or one of our partners from anywhere in the world (Europe, America, Asia, etc.).


 

To Peter Harding: I would be very interested in the keyboard. I am trying to preserve what I can and have assembled a small collection of Galaxy parts. I am missing the keyboard you mention.

          
Sunday 9th May 2021
John Newcombe (West Berkshire)
https://glasstty.com

To Peter Harding: I would be very interested in the keyboard. I am trying to preserve what I can and have assembled a small collection of Galaxy parts. I am missing the keyboard you mention.

          
Sunday 9th May 2021
John Newcombe (West Berkshire)
https://glasstty.com

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)

 

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




Please buy a t-shirt to support us !
Ready prompt
ZX Spectrum
ZX81
Arcade cherry
Spiral program
Atari joystick
Battle Zone
Vectrex ship
C64 maze generator
Moon Lander
Competition Pro Joystick
Atari ST bombs
Elite spaceship t-shirt
Commodore 64 prompt
Pak Pak Monster
Pixel Deer
BASIC code
Shooting gallery
3D Cubes
Pixel adventure
Breakout
Vector ship

Related Ebay auctions in real time - click to buy yours



see more Gemini  GALAXY Ebay auctions !



 
Click here to go to the top of the page   
Contact us | members | about old-computers.com | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -