Something I just ran across was a website with a list of CPUs and the machines
that used them starting with the Intel 4004 and continuing up through the
8086/8088.
http://www.cpushack.net/antique-computers.html
As they themselves say, the list is far from complete, but it is pretty
interesting.
Anyone know of any Wright-Line freestanding tape racks available in
the Bay Area? (for 2400ft tapes, 30tape, 5 rack)
The Computer History Museum needs a few. Would think there should
still be some kicking around somewhere near here.
Someone wrote....
> I have some PDP11 in various states to 'dispose of' - can you help me find
> some appropriate new home(s) for them, please? They are currently 'stored'
> (ie sitting on a pallet in a dusty room) in warehouse premises - in Wigan,
> UK - which are due to be vacated later this year (but that will be after i
> have left the company, hence the need to 'clear up' before then before
> they're scrapped).
>
> There is one 11/83, two 11/73's and most of a couple of others whose types
> i 'm unsure of.
>
> I can arrange to ship these, preferably to one area in mainland UK but
> perhaps to several ...
>
> If you can help me to get in touch with anyone UK-based who can 'take them
> off my hands' i would be most grateful ...
Please contact me off-list if interested.
Jay
If anyone wants these, please contact original poster directly. I don't hear
much about IAS.
Jay
----- Original Message -----
From: "Al Fontes" <alfred at fontes.org>
To: <jwest at classiccmp.org>
Sent: Saturday, February 17, 2007 1:11 AM
Subject: PDP-11 docs
> I have the following, which are yours if you'll cover the shipping from
> San Francisco:
> RT-11 System User's Guide, 1980
> IAS/RSX-11 MACRO-11 Reference Manual, 1977
> PDP-11 Processor Handbook, 1981
>
> The front cover's starting to tear off the handbook, which is a paperback,
> but otherwise it's in decent shape The other two manuals are loose-leaf
> pages that go into a 3-ring binder. They're in good shape as well.
>
> Please let me know if you want them. I've come very close to recycling
> them a few times.
>
> --Al
Hi Curt. Do you know if this is the H960 rack? I am looking for one that has the "legs" on the front. Like the one in this photo:
http://www.groenenberg.net/pic/PDP/eb04.jpg
Do you have any photos of the cabinet? Thanks.
Todd Paisley
I have a fondness for the Wyse 85 and I was wondering if anyone here has
one in decent condition to get rid of.
--
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?
>From: "Glen Slick" <glen.slick at gmail.com>
>
>On 2/19/07, aliensrcooluk at yahoo.co.uk <aliensrcooluk at yahoo.co.uk> wrote:
>>
>>No idea whether this is true or not, as it
>>was in part of a spam email, but because of
>>the TI link, I thought it might be of some
>>interest here (and perhaps someone can confirm
>>whether it's true or not?):
>>
>>
>>In 1960 an engineer working for a watch
>>company in Switzerland discovered that a small
>>crystal would vibrate at a constant rate.
>
>I imagine the history of crystal oscillators goes back a lot longer
>than the 1960s.
>
>A quick web search found this article with much earlier dates:
>
>http://www.ieee-uffc.org/fc_history/bottom.html
Hi
The use of quartz crystals in watches did take some invention.
Most crystals used for oscillators would have either had to be made
very large to get to lower frequencies or run at high frequencies.
Running at high frequencies would run the battery down
quite soon.
It was the concept of the cantilever mounted crystal that allowed
a piece of quartz to both oscillate at a low frequency and be small
as well.
They also found a cut with the right temp coef to work well attached
to a humans arm.
It was these things that made the quartz watch work. The Swiss
were into making chronometers. This also required that they maintain
exact time, over a wide range of temperatures. With out additional
correction, these quartz watches can't meet such requirements.
Of course, the Swiss didn't think that most would keep their
watch with them most of the time and would still be quite accurate.
Such is life.
When looking at the inventions of the twentieth century, I have
considered the quartz oscillator to be the most important. No good
replacement has been found. Tubes to transistors to FET's and the
quartz crystal is still essential.
Dwight
_________________________________________________________________
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> Surely the easiest way would be to find a 9-Track with SCSI interface
> and hook it directly to the PC.
It is. I have read thousand of tapes with a Powerbook G3 and various
SCSI interfaced drives (Kennedy, HP, M4 Data and Qualstar). Surprisingly,
for 1600/6250 the Qualstar 34xx is the best at recovering data. The Kennedy
96xx was working great on 800bpi tapes 'til the takeup tension arm started
failing self-test.
