Here is a message from CCTECH about the Perq 1 keyboard and mouse. For whomever it is who attempts to repair the FKAMARCH Perq 1, save this info... Bill
I rescued one for VCFederation museum two years ago. http://vintagecomputer.net/perq/ I was just looking at it this weekend. It needs a keyboard and mouse I believe. I remember there was a guy in Texas who had a few, never heard the full story though.
That's a PERQ 1 (or 1a, the difference is in the CPU board), The keyboard and pointing device for a PERQ2 series machine are very different.
The PERQ1 uses a standard Summagraphics Bit Pad 1 as the 'mouse'. It has to be the GPIB version, and connects to the GPIB port on the PERQ. There was going to be a special mouse known as the 'Kriz tablet' but AFAIK it never existed.
The keyboard is an 8 bit parallel interface with strobe. IIRC it's essentially the ASCII code on the bottom 7 bits and the top bit is the ctrl key. Also in the keyboard are the reset button (which IIRC just grounds a line on the connector) and the DDS (diagnostic display) which is a 3 digit decimal counter cleared by the reset button and incremented by a signal from the processor, The machine will run without a DDS, but it's a lot harder to figure out why it doesn't boot.
Basically what I am saying is that while it is nice to have the right parts, there are going to be workarounds if you can't get them
-tony (Duell)