Hi all,
For those that care, I just found an interesting web site at
http://www.arrgh.demon.co.uk/home.html; quite a bit of info on all the
popular old 8-bit machines of the early 80's, plus where to get
emulators for these machines from, articles about popular computing
characters of the time, etc...
have fun,
Jules
At 12:58 AM 14-05-98 -0400, William Donzelli wrote:
>> That is good news (for us). Do you have contact details for anyone who
>> has one?
>
>The DEC Australia collection probably has one (but they have damn near one
>of EVERYTHING DEC made!).
If this is discussing a PDP-9 then yes, there is at least one in the
collection - the first Digital box purchased by La Trobe in about 1967.
There's an interesting story behind this system:
In about 1968 the -9 was stored in a basement area which was unfortunately
flooded when some high-pressure water pipes ruptured. My current boss (who
was Computer Centre Manager at the time) along with the technical officer
moved the -9 out onto a lawn and it was disassembled. The parts were then
washed and dried in front of radial heaters (one of which is still in use
in my bosses office!). The -9 was reassembled but three flip chip modules
were found spare! The system ran (without them) for about 10 years before
being replaced with a PDP-15, DECsystem-10 and Vaxes of various types. It
was decommissioned and moved to the DEA museum collection.
Huw Davies | e-mail: Huw.Davies(a)latrobe.edu.au
Information Technology Services | Phone: +61 3 9479 1550 Fax: +61 3 9479
1999
La Trobe University | "If God had wanted soccer played in the
Melbourne Australia 3083 | air, the sky would be painted green"
Yes, but we're nearly at the dawn of the 21st century. We've got like
what... 5 billion? And furthermore, there are several authors on the list,
who actually controll their temper.
Tim D. Hotze
-----Original Message-----
From: Russ Blakeman <rhblake(a)bbtel.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Thursday, May 14, 1998 9:36 PM
Subject: Re: Oh, what a tangled web...
>Greg Troutman wrote:
>
>> With the recent discussion on the MTPRO price guide, the ZX80 bashing,
>> and a bit further back the Enrico Tedeschi flame festival, I found it
>> quite amusing to run across the following entry at eBay:
>>
>> http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=13957826
>>
>> For those without a web browser, I'll just say that this is a book on
>> Sinclair computer history, being auctioned by the author of the MTPRO
>> price guide (who goes by the handle "ClassicComputing" at eBay). Most
>> remarkable of all, the book was authored by a gentleman named Enrico
>> Tedeschi.
>
>You sure wouldn't know it by the way he writes in the list area, would
>you. I guess anyone can write a book
>anymore. ------------------------------------------------------------------
--
>
> Russ Blakeman
> RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144
> Phone: (502) 756-1749 Data/Fax:(502) 756-6991
> Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com
> Website: http://members.tripod.com/~RHBLAKE/
> ICQ UIN #1714857
> AOL Instant Messenger "RHBLAKEMAN"
> * Parts/Service/Upgrades and more for MOST Computers*
> --------------------------------------------------------------------
>
>
Haven't you ever spelled upside-down words on a calculator before?
Q: What is the Divine Comedy about?
( [4] [3] [3] [7] [M+] ) Hell
>Russ Blakeman wrote:
>
>> Remember when the LED HP calculators were banned from high schools
and
>> considered cheating? My best friend was suspended over just the
possession of
>> one in school, not even in class. Of course he's a few years younger
than I as
>> I don't remember calculators being much less than the price of a good
used car
>> when I was in school. They came down dramatically in 76 when I was
going
>> through electronics training. I think the one I had cost $105 then
and we
>> thought that was cheap.
>
>I was forbidden to take my old Pickett out of its holster many times
>back in my early 70s high school days. Never understood what
>advantage it was supposed to give me in an EngLit test ...
>--
>Ward Griffiths
>They say that politics makes strange bedfellows.
>Of course, the main reason they cuddle up is to screw somebody else.
> Michael Flynn, _Rogue Star_
>
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So do you suppose it would be possible to take a shot at figuring
out how the thing works? I have no drivers for it. I could look up
what the 164P is wired to, saturday or monday. Do you think it would
be feasible to develop a driver for it?
>> Hitachi HD74LS32P
>
>Quad 2-input OR gate.
>
>> 367AP
>
>Is that another chip? If so, its a hex 3-state buffer
>
>> 240P
>
>And that's an octal inverting 3-state buffer
>
>> 164P
>
>And a shift register (odd...)
>
>> MB74LS00
>
>Quad 2 input AND gate
>
>> 138
>
>3-8 line decoder.
>
>>
>> TI J549X SN74LS541N
>
>Octal 3-state buffer.
>
>Probably some kind of address decoder (the '138) and buffers. Nothing
too
>unusual (although what the '164 is doing I don't know).
>
>-tony
>
>
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Sorry, I always get those things backwards ;)
[7] [7] [3] [4] [M+]
>On Thu, 14 May 1998, Max Eskin wrote:
>
>> Haven't you ever spelled upside-down words on a calculator before?
>> Q: What is the Divine Comedy about?
>> ( [4] [3] [3] [7] [M+] ) Hell
>
>LEEH?
>
>-- Doug :-)
>
>
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I will do my best to drop by. I don't really intend to buy much, just
take a breaking from browsing _virtual_ computer museums
> Well Agreed!
>
> Sorry I haven't been active in the list much... between work and
>a family illness I've been _busy_! BTW: Anyone planning on attending
>the MIT Flea market this Sunday? I doubt prices are going to be
>reasonable what with that $100 PDP-11/23 last month.
>
>--jmg
>
>> From: Sam Ismail <dastar(a)wco.com>
>> Subject: Can we talk about computers at least?
>>
>> People.
>>
>> Could we move the discussion about the perceived woeful inadequacies
of
>> the current state of public education to a more appropriate forum?
Like
>> say a usenet group? Or a new mailing list? Basically anywhere but
here,
>> where it really does not belong?
>
>
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I remember frying a //c by plugging in an 800K external drive.
Hey! It fit!
>On Wed, 13 May 1998, David Williams wrote:
>
>> Early versions of the Apple //c didn't have the support for 3.5"
>> drives. Mine is like that. You can check which version of the //c
>> you have by going into Applesoft and doing a PRINT PEEK(64447). If
>> it returns 255 then you have an original //c. The tech ref shows 3
>> basic versions and their ID bytes as follows:
>>
>> Original //c : ID Byte = 255
>>
>> UniDisk //c : ID Byte = 0
>
>Mine returns 0, so this is the one. It should support 3.5" drives,
though
>possibly not the one I've got.
>
>> Added 3.5" support
>> Increased ROM to 256K
> ^^^^ You've GOT to be kidding me!
>
>Unless it means "ROMs that will support 256K of RAM".
>
><snip>
>
>Doug Spence
>ds_spenc(a)alcor.concordia.ca
>
>
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