Geoff Macdonald's Computer Museum
Grundy

 

 


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Newbrain

  • Released 1981

  • CPU Z80A at 4MHz

  • RAM 32k

  • ROM 28k

  • Text 40/80 x 25/30 (black and white), AD model had internal 16 character vacuum fluorescent display

  • Graphics 256/320/512/640 x 250

  • 2 tape ports and floppy disc

  • 2 serial ports

  • Parallel printer

Three models were available. The "A" only had a tv/monitor output, the "AD" had a 1 line by 6 character VFD, and the "M" had the VFD and a battery pack. There are three stories of it's origin, one is that it was offered to Sinclair who turned it down another is that Sinclair sold it when they failed to get the BBC contract.  A third story is mentioned in the "Sinclair story" by Rodney Dale.  He says that first Sinclair microcomputer contained some innovative design concepts, but the National Enterprise Board (a major shareholder) sold the design to Newbury Electronics to raise cash for Sinclair Radionics.   After two years, the machine was rescued by the British Technology Group who placed the design and production in the hands of the Grundy Group.

 

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Copyright (C) 1999-2002 by Geoff Macdonald

Last updated 03/09/2002