Acorn - 8-bit   BBC Master

BBC Master Series

The BBC Master computer was released by Acorn Computers in 1986 as a successor to the BBC Micro, model B. The machine was built around the MOS technology 65SC12 processor and came in a few different models. One of the strengths of the architecture was that it could be expanded using a co-processor, that enabled it to run DOS Plus or the GEM graphical user interface.

The system was designed and built for the BBC as part of the push to enable computing in the British education system. The computer was backwards compatible with the BBC Micro, except for some games that used features on the BBC Micro that were not part of the standard.

BBC Master Models

  • Master 128 - First model of the Master series
  • Master Turbo - Featured a 65C102 co-processor @4MHz
  • Master AIV - Master Turbo with a SCSI interface and a Videodisc
  • Master ET - For use on a network, only had RGB and Econet connectors
  • Master 512 - Intel 80186 co-processor @ 10MHz to run DOS Plus and GEM
  • Master Scientific - Prototype, NS32016 co-processor @ 8MHz
  • Master Compact - Compact version of the 128

BBC Master Compact

BBC Master Compact User Interface

BBC Master Images

By Acorn CPU Synertek SY65SC12, optional Intel 80186 or 65C102 Memory 128K RAM, 512K MAX Sound 3 Square Wave tone generators, 1 noise generator, 16 volume levels. Sprites none Display 640x256 2 colors, 320x256 4 colors, 160x256 8 colors Display Chip Motorola 6845 Sound Chip Texas Instruments SN76489 CPU Class 6502 Developed by Acorn
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Acorn BBC / Archimedes
BBC  Master
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