[vcf-midatlantic] Perq 1
billdegnan at gmail.com
Wed Dec 9 11:21:24 EST 2015
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...
>> I rescued one for VCFederation museum two years ago.
> 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
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
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
display) which is a 3 digit decimal counter cleared by the reset button and
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)
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