On Wed, Dec 9, 2015 at 10:54 AM, tony duell <a...@p850ug1.demon.co.uk> wrote:
> > > > 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 > Tony - thanks I passed the info along to our club. -- Bill
