Today horse racing - tomorrow STARTREK on one line!
It would be good to get some photographs of how the cards are cabled together at some point when you have a spare minute or ten. I think I have worked it out from the cards though as follows:
The RAM and ROM cards are connected together and to CPU/J3 via 2*20 way ribbon cable.
The I/O card is connected to CPU/J2 via 2*20 way ribbon cable.
The two 2*13 way connectors on the I/O card are connected to the two tape drives - one to each.
The connector 'on its own' on the I/O card is connected to the outside world via the rear of the case.
The two 2*10 way ribbon cables on the CPU card (J1 and J4) are connected to the keyboard and the display (not sure which way round though) - but I am going to hazard a guess that J1 is the keyboard and J4 is the display (based on the number of connections to the connectors).
Dave
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