Hi CC Techers, Dwight Elvey visited here the other day and dumped the
contents of the eight 1702 PROMs that are the heart of the Digibarn's
8008 system built by Bill Pentz and team at Sacramento State in
1972-73. It might have drivers and code for their "DOS" which
supported a serial interface, hard disk, Tektronix 4023 and
interpreter for mainframe 370 IBM BAL. It might be junk or nothing.
If there was something there it would be the "earliest" such code for
a microcomputer and very valuable historically.
The SacState 8008 story can be seen at:
http://www.digibarn.com/stories/bill-pentz-story/index.html
and we would love to add the disassembled code to this ongoing project.
If you are interested in trying to disassemble this and interpret
what this code represents please email me directly at:
bdamer at digitalspace.com
and I will send you the binaries.
Bruce
cc Dwight
Pontus Pihlgren <pontus at Update.UU.SE> wrote:
> Hi
>
> I've acquired two PDP-11/44 and have just now gone throught the list of
> cards in the cpu-boxes and the spares. Here is a list:
>
> http://www.update.uu.se/~pontus/slask/11-44-kort.txt
Nice! You'll be able to put together atleast one really nice 11/44 from
that. I notice one FP11 in the list.
> Also I wonder what the
> "M7251 KG11-A U Network interface XOR and CRC block check option"
Just what it says, Network interface XOR and CRC block check option. :-)
Ok. The long answer then... You know about CRC-16 I assume?
This is hardware to generate that. You shove data to the card, one word
at a time, and you can read out the CRC value.
This card is, however, not very popular or useful, since software CRC
routines are actually faster on the PDP-11. DECnet can use this card if
you have it, but it's recommended that it not be used for this fact.
(The card is actually more generic, and can be used to generate any kind
of CRC checksum, not just CRC-16.)
> "M3110 DRCSA U Protocol assist #1 w/special character check and CRC (DEC/DLC/DRCSA)"
> "M3111 DRCSA U Protocol assist #2 w/special character check and CRC (DEC/DLC/DRCSA)"
No clear idea about those two...
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Hi,
I recently obtained a Microwriter with an LCD display. It turns on and displays MW4/10, with an 'f' in the right of the display. I can enter letters, but after about 8 it locks up and I need to power cycle (using the white button), which resets the unit as above.
I think 'f' is a mode, I think it was 'I' originally (but I can't find a way to change it!). I hope it stuck in some mode or waiting for serial input, can anyone help with command sequences please? Else it may be faulty, I found Tony's post from 2009 asking for a 'good' EPROM image, maybe mine is failing in a similar way.
Regards,
John
I just ran across an NEC D75008 microcontroller in a small photo copier
ca. 1990. According to a search it is a 4-bit microcontroller.
Idle curiousity, but does anybody know if this has any inheritance from
or relation to better-known microcontrollers such as the TMS1000, that
is, is it NEC's version of something better known?, or is it NEC's own
architecture?
On Thu, Sep 2, 2010 at 10:09 PM, Zane H. Healy <healyzh at aracnet.com> wrote:
> Does anyone happen to know where to get parts for one of these? At a
> minimum I need lenses to get it working.
>
> Zane
>
Talk to Ken Hansen with Imaging Systems - 608-276-5559 or Dick
Svehla at All Micrographics & Scanning - 352-684-1159. Both are
pretty resourceful and tend to have a lot of assorted microfilm gear
and parts on hand. If neither of them can help you out, let me know,
and I'll dig a little deeper into my contacts list to see who else I
can find.
--Shaun
--
"If you live to be a hundred, I want to live to be a hundred minus
one day, so I never have to live without you." -- Winnie The Pooh
http://www.lungs4amber.org
On Youtube I found a video of some guy walking through an IBM mainframe
installation showing the viewer a bunch of stuff.
http://www.youtube.com/watch?v=hdNxaRa4roo
Does anyone here know of similar videos for, say, a DEC installation?
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
I have an Apple Lisa 1 for sale. Yes, it has the Twiggy drives. It
includes the Twiggy systems OS disks (2), original Lisa 1 manual,
keyboard, original Lisa (rectangular button) mouse.
It works.
Excellent condition.
Normally I would not so brazenly hawk something but I need to raise funds
for an imminent move of the VCF archives.
I'm entertaining any and all offers. At a minimum, there should be three
zeroes before the decimal point.
Please contact me directly if you're interested. Photos and more detail
will be forwarded upon request.
Will ship galaxy-wide.
Thanks!
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
Hey folks. I realize this is short notice, but on Tuesday the 7th
I'll be hitting the road from Port Charlotte, FL (Gulf coast south of
Tampa) and driving a mostly-empty 16' box truck up to the Washington DC
area. I am willing to transport stuff along that route, within a
reasonable distance of the 95 corridor, for reasonable compensation.
In the middle of the following week, likely around the 14th, I'll be
driving back down the same route. I will have less space available
then, but I should have some free room.
Contact me directly via email if interested.
-Dave
--
Dave McGuire
Port Charlotte, FL
