Acorn BBC Master AIV

The Acorn BBC Master AIV is the host computer for the Acorn AIV (Advanced Interactive Video) system and runs the Domesday software. The Master AIV is an Acorn Master 128 8-bit computer with the optional 65C102 co-processor board and AIV SCSI board fitted.

The Acorn Master AIV

The base Acorn Master 128 is a 2 MHz 6502 based computer with 128K of RAM. The 65C102 co-processor provides an additional 65C102 CPU running at 4 MHz as well as 64K of on board RAM dedicated to the co-processor.

Acorn BBC Master AIV internal view

The following photograph shows the internals of a BBC Master AIV. The machine is a stock AIV system including the coprocessor and AIV SCSI board.  This machine was originally used by the University of Gothenburg in Sweden and has been modified with Swedish key-caps:

Acorn Master AIV internal view

Acorn 65C102 Co-Processor Board

In the following picture you can see a close-up of the 65C102 co-processor board. The major components are the 65C102 processor, the RAM and ROM and the Tube IC (that controls communication with the host computer):

Acorn 65C102 Co-Processor board