Re: Acquired a PDP-8/E
> We should have a get together at one of the AHCS meetings and playwith some PDP-8s, then!
--- I would like to get together but haven't been to the AHCS meetings
in many months. I do hope to get back eventually. Get in touch when
you're going to be in town sometime and maybe we can set something up.
>What have you managed to do with your PDP?--- Well, the restoration was extensive, both physically and
electronically but I managed to get the processor in good shape. Built a
32K non-volatile RAM board for it, which I'm currently writing up for
Tronola. I also restored an RK05 hard drive for it. With the help of
Dave Gesswein and Bill Degnan, was able to boot OS/8 and run Fortran and
Focal. After writing articles on the project, I will be building Bob
Armstrong's SBC6120/FP6120 kit and doing a short project on a vacuum
Beyond that, I'll be circling back around to the PDP8/m, with bringing
up the Extended Arithmetic Unit boards for it and repairing an 8K core
memory board set. There is also a second RK05 drive and a Tektronix 4012
graphics terminal which need work. Eventually, I hope to recreate
something like the great PDP8/e system, which I worked with back at
college in the 70's. It had the Tek terminal, 32K core, FPP12 floating
point processor, RK05's, as well as DECtapes. I have a general notion of
wanting to run simple CAE programs on it. Back in school, I wrote a
simple schematic capture program for it. Have always wanted to see what
it could do with circuit analysis software...
- On 06/06/2013 12:54 PM, Kyle Owen wrote:
> That looks like a nice product, but yes, it's certainly expensive. I've gotOS/8 needs a random-access storage device; paper tape won't do it.
> some FPGA background myself, along with several different microcontrollers,
> so I may see about creating something that will work with my high-speed paper
> tape interface. That could be considered an OS/8 storage device, yes?
Magnetic tape drives are *physically* sequential-access, of course, but the
TU56 (for example) is logically a random-access, block-oriented device. (with
highly variable latency ;))
> I wouldIf this was a generally-directed question...The book you want for "most
> have no idea how to go about writing a driver for it yet, but perhaps it'd be
> in my best interest to start reading up on the commands for the card and then
> learn more about OS/8. Do you have any suggestions on recommended reading for
things OS/8" is the "OS/8 Handbook". It is excellent. Try to find a paper
copy if you can, but it's available in PDF on bitsavers:
Dave McGuire, AK4HZ
New Kensington, PA