Looking for a PERQ

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 Bill -- Bill