Quantum QM2000

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I recently acquired a Quantum Computers QM2000 at a local auction. Having never seen one before I was interested to see what it was like. It was listed as not working due to having failed a PAT test and therefore the power leads were not included. One of the few sites I found showing the computer in magazine advert from 1983 They QM2000 is based on the Nascom-2 bus with cards made by and sold under the Gemini name. There is some limited information on the QM2000, but more information and schematics for the Gemini cards. At this time it has not been powered up as it would need the mains electrical sockets replacing and the Power supply capacitors replacing.

Triple floppy drives, which are unusual
Original Green CRT monitor
Original green CRT monitor
Chunky keyboard with missing keycap

It has a selection of connectors on the rear that connect to various peripherals.

Rear connectors: Power in, Monitor Power, keyboard, RS232, Centronics, Video, Cassette and lightpen.

Inside of the QM2000.

Lots of space inside
Rear connectors form the inside
Inside of monitor

The main boards can be removed.

GM813 Z80 CPU and 64K RAM card
GM812 Intelligent Video Controller (IVC)
GM829 Disk controller card

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