The PDP-8 was a 12bit word, 4096 word machine.
It didn't even have a load accumulator instruction, it
only had an ADD...the store did a clear, so you might
have to add something back that you stored, just to retain
the value!

I think that Unix was developed for one of the bigger models,
originally.

I remember that the Mechanical Engineering group had a PDP-8,
and I would walk by their room, running 8-10 teletypes, a graphics
terminal or two, a printer, and several tape drives, all running
at once! Of course, they had 32k words of memory, using some bank
switching trick, but no one ever had more than 4K words to work with.
Guess they knew how to right efficient software back then!


-----Original Message-----
From: Olav Kappert [mailto:[log in to unmask]]
Sent: Friday, October 13, 2000 5:01 PM
To: [log in to unmask]
Subject: Re: [HP3000-L] Old Digital DEC PDP-8 computer or software


If I remember right, isn't the PDP-8 the computer where the first version of
Unix
was developed ?

Olav.

Mike Whiteley wrote:

> I have some info about the PDP-8, but John's email bounces.
>
> John, please mail us at [log in to unmask] and [log in to unmask]
>
> Thanks...
> Mike
>
> -----Original Message-----
> From: HP-3000 Systems Discussion [mailto:[log in to unmask]]On
> Behalf Of [log in to unmask]
> Sent: Friday, October 13, 2000 8:32 AM
> To: [log in to unmask]
> Subject: wtb: Old Digital DEC PDP-8 computer or software
>
> I am trying to aquire  a PDP-8 minicomputer (like the PDP-8/E, PDP-8/S,
> etc..). Also, any software, boards, manuals for a PDP-8.
>
> Please e-mail me at [log in to unmask] if you have anything available.
>
> John