GM829 Gemini Multiboard Floppy Disk Controller

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The Gemini Galaxy range of computers were of "all British" origin, being manufactured by Gemini Microcomputers Ltd., Amersham, Bucks.

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 expansion cards were available, this example is a floppy disk controller. 

Date : Unknown

Manufacturer : Gemini Microcomputers

Format : Expansion Board

Physical Description : Card box, Polystyrene base and lid, Expansion board

This exhibit has a reference ID of CH55591. Please quote this reference ID in any communication with the Centre for Computing History.

Scan of Document: GM829 Gemini Multiboard Floppy Disk Controller

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