Cumana 68008 Issue 2 Second Processor

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A 68008 2nd processor board for the BBC Micro. The socket on the bottom connects the 68008 2nd processr to the BBC Micro. The BBC Micro's 6502 CPU is removed and a ribbon cable is plugged into the socket and the socket on the bottom of the 68008 2nd processor board.

The Cumana 68008 2nd processor had its own disc controller and ran OS9 from its own floppy drive. It shipped with the standard OS9 utilities and applications.

The board was developed with Vivaway Ltd who were the UK agents for Microware Systems Corporation who developed OS9.

Here is a copy of the Installation Guide for the BBC Upgrade .
Here is a copy of the Cumana 68008 2nd processor circuit diagram .
Here is an article from Acorn User in Nov 1985 titled "Cumana launch 16-bit processor "

Date : 1985

Manufacturer : Cumana

Format : Processor Board

Physical Description : Expansion board

This exhibit has a reference ID of CH52418. Please quote this reference ID in any communication with the Centre for Computing History.

Scan of Document: Cumana 68008 Issue 2 Second Processor

Click on the Image For Detail

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