---
title: Gemini GALAXY
categories:
- Computers
types:
- Professional Computer
origins:
- United Kingdom
years:
- '1983'
cpus:
- Zilog Z80A
params:
  name: GALAXY
  image: /media/museum/photos/gemini_galaxy2_system_s1.jpg
  company: /companies/gemini
  company_name: Gemini
  specs:
  - label: NAME
    value: GALAXY
  - label: MANUFACTURER
    value: Gemini
  - label: TYPE
    value: Professional Computer
  - label: ORIGIN
    value: United Kingdom
  - label: YEAR
    value: '1983'
  - label: KEYBOARD
    value: Full stroke keyboard with numeric keypad
  - label: CPU
    value: Zilog Z80A
  - label: CO-PROCESSOR
    value: second Zilog Z80A running the 'programmable' video card (Called the IVC).
  - label: RAM
    value: 64 KB dynamic
  - label: VRAM
    value: 2 KB
  - label: ROM
    value: 2 KB Phantom Bootstrap ROM
  - label: TEXT MODES
    value: 80 x 25
  - label: GRAPHIC MODES
    value: 160 x 75
  - label: COLORS
    value: Unknown
  - label: I/O PORTS
    value: Centronics, RS232, Light Pen, Tape
  - label: BUILT IN MEDIA
    value: Two 5.25'' disk-drives
  - label: OS
    value: CP/M 2.2 and MP/M
  - label: POWER SUPPLY
    value: Unknown
  - label: PRICE
    value: Unknown
  tabs:
  - photos
  - adverts
  - links
  forum_thread: 384
  photos:
  - title: GEMINI CATALOG, 1985
    subtitle: ''
    text: Thanks to **Henk Bekkers**
    image: /media/museum/photos/gemini_galaxy_catalog_s1.jpg
  - title: 'GEMINI CATALOG #2'
    subtitle: ''
    text: Thanks to **Henk Bekkers**
    image: /media/museum/photos/gemini_galaxy_catalog_s2.jpg
  - title: 'GEMINI CATALOG #3'
    subtitle: ''
    text: Thanks to **Henk Bekkers**
    image: /media/museum/photos/gemini_galaxy_catalog_s3.jpg
  - title: 'GEMINI CATALOG #4'
    subtitle: ''
    text: Thanks to **Henk Bekkers**
    image: /media/museum/photos/gemini_galaxy_catalog_s4.jpg
  - title: 'GEMINI CATALOG #5'
    subtitle: ''
    text: Thanks to **Henk Bekkers**
    image: /media/museum/photos/gemini_galaxy_catalog_s5.jpg
  - title: PRICE LIST, NOV. 1985
    subtitle: ''
    text: |-
      Prices are given in UK pounds.

      Thanks to **Henk Bekkers**
    image: /media/museum/photos/gemini_galaxy_pricelist_s1.jpg
  - title: 'PRICE LIST #2'
    subtitle: ''
    text: Thanks to **Henk Bekkers**
    image: /media/museum/photos/gemini_galaxy_pricelist_s2.jpg
  adverts:
  - title: UK ADVERT, OCT. 1983
    subtitle: ''
    text: ''
    image: /media/museum/pubs/gemini_galaxy2_pub_s1.jpg
  - title: 'UK ADVERT #2'
    subtitle: ''
    text: Close-up of the previous advert showing the various cards of the Gemini 80-BUS system.
    image: /media/museum/pubs/gemini_galaxy2_pub_s2.jpg
  links:
  - title: 80 BUS
    url: http://www.80bus.com
    text: Lots of things about Gemini & Nascom
  - title: MIXTEL
    url: http://www.mixtel.pwp.blueyonder.co.uk/
    text: Info about Gemini & Nascom
  oc_id: 385
  source:
    url: https://web.archive.org/web/20230605025122/http://www.old-computers.com/museum/computer.asp?c=385
    date: '2023-06-05'
---

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.

<table> <tr> <td></td> <td>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.</td> <td></td> </tr> </table>