This is a rare version of the Newbrain AD that appears to have been used in medical applications. Obvious differences are that it lacks the RF and composite outputs of the AD, as well as the expansion port. The ports it does have are unlabelled (see photo attached with a standard AD for comparison).
Manufacturer: Grundy Business Systems
Date: 1st January 1982
This exhibit has a reference ID of CH47740. Please quote this reference ID in any communication with the Centre for Computing History.
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