I sent my original reply to that poster offlist, but since there's some
interest in this, have a look at my page at:
http://mysite.verizon.net/rtellason/w4s.html
which lists a number of parts that I have a *lot* of. Any of you folks want
some of these, feel free to contact me offlist...
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
> Well, the other choice at the time was the 68000. 32-bit registers,
> yes, but it had goofy quirks all its own (didn't you halt the CPU if you
> attempted to read memory not on word boundaries or something?
On the original 68000, instructions had to be aligned on 16 bit boundaries
or you'd get an instruction fault.
The associated stupidity was wasting a bit of the branch range by NOT having
the branch target word-aligned.
> Jules Richardson wrote:
> Well if the IBM PC hadn't turned up, surely computers would have ended up in
> the hands of the masses anyway? There were plenty of good, robust, expandable
> systems with good software support worldwide at the time - all it needed was
> for society to be ready to accept 'the computer' on a wider scale. IBM just
> happened to be in the right place at the right time, and it's unfortunate that
> they'd built a turkey :-)
I agree. Whether it was Apple or IBM or Tandy or someone else, it would
have happened anyway. If I had my 'druthers though, what ended up in
the hands of the masses would have been more of a real appliance than
something to be viewed as a computer. When you get right down to it
the main differences among a game console, a dedicated word processor
and a "personal computer" are the expectations of the user. Nothing
wrong with giving the masses a toaster that can transform into a mixer.
But when you foist on them a device that they need a class at the local
community college to learn "how to use" then you've done a disservice
to both the masses and to the computer scientists.
To bring this back to the collectibility question, there have been a few
machines that seemed to be pitched in that direction. But they never
seemed to generate the momentum that "we've got these at work; I'll
buy one for home" did. A collection of those would make a nice niche
display in a computing museum.
BLS
Hey, all:
I've been thinking it'd be a good idea to buy and set aside some spare
parts for the couple of DEC machines I have around... mostly 7400-series
ICs, some switching transistors and such. It's been a while since I've
bought parts, however. What places (preferably online) have you had good
experiences with?
-O.-
Hans Franke wrote:
> Am 24 Aug 2006 11:50 meinte Don:
>
>> Hi,
>>
>> I've a Sharp PC-1211 with CE-122 "Printer & Cassette Interface".
>> But, I'll be damned if I can figure out how to make the printer
>> *work*! It advances paper when manually commanded to do so.
>> But, I can't figure out how to get the 1211 to print *to* it!
>
> Try
>
> LPRINT "All your Printers belong to us"
I've tried PRINT and LPRINT -- in all four "modes". No luck.
>
>Subject: Re: PDP-8 /e/f/m memory
> From: "Ethan Dicks" <ethan.dicks at gmail.com>
> Date: Wed, 16 Aug 2006 12:13:16 +1200
> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>On 8/15/06, vrs <vrs at msn.com> wrote:
>> From: "Ethan Dicks" <ethan.dicks at gmail.com>
>> > OK. Is a DEC005 OMNIBUS-friendly? We used them on our Qbus COMBOARD,
>> > so that's the context I think of them in.
>>
>> Interesting question, even though I'd never design in a DEC005. They are
>> made of even more unobtainium than the regular tranceivers!
I have a selection of DEC0XX parts on hand from my days in the mill.
>Agreed. I have a few, but I used to make Qbus cards. For most folks,
>the only source is other cards.
Or plain TTL. LS241 is a good reciever for Q, U or Omnibus (Schmitt inputs)
and 74LS38 makes a good open collector driver. There are others.
Allison
So, I have an older USR Total Control system with quad V.34 modems on each
card, and prolly 12 cards in the system.
I was curious as to just what makes this sucker tick, so I pulled a card &
started looking at chip numbers...
Each "modem section" has:
an Intel 80C186 (same chip as in the Tandy 2000) - except they're rated for
20Mhz...
a TI/USR DSP chip, which is prolly useless outside of the intended use
2 each 32Kx8 static ram chips,
4 each 128Kx8 static ram chips
and lots of other 8/16-bit 74-series buffer chips & whanot.
So, *if* I can get a Dynamic-RAM -> Static RAM converter board designed for
the CoCo, I could upgrade 4 CoCo3s to 512K with each modem board.
Anyone have any use for some 20Mhz 80C186's?
Laterz,
Roger "Merch" Merchberger
--
Roger "Merch" Merchberger -- SysAdmin, Iceberg Computers
zmerch at 30below.com
What do you do when Life gives you lemons,
and you don't *like* lemonade?????????????
--- Teo Zenios <teoz at neo.rr.com> wrote:
>
> ----- Original Message -----
> From: "Tom Peters" <tpeters at mixcom.com>
> To: "General Discussion: On-Topic and Off-Topic
> Posts"
> <cctalk at classiccmp.org>
> Sent: Tuesday, August 22, 2006 3:10 PM
> Subject: Re: OT: Hotdog cooker links
>
>
> > I built a hot dog cooker when I was 9, consistin
g
> of a small piece of pine
> > (1x4 nominal), two nails, and a line-cord
> connected to 110VAC mains. It
> was
> > based on an idea I saw in a book somewhere. My d
ad
> was absolutely sure it
> > wouldn't work. It did. We disassembled it right
> after using it because of
> > the hazards of exposed line voltage and two poin
ty
> things sticking up.
> >
> > Those were the days.
>
> I recall a TV show a long time ago (some guy showi
ng
> kids how things worked)
> was showing how to cook a hotdog like that (I thin
k
> they used those small
> forks that you held corn on the cob with) and
> plugged them into 110VAC for a
> few seconds. The salty liquid in the hotdog
> conducted enough electricity to
> cook the hotdog in a few seconds. I bet that show
> never gets replayed these
> days because of lawyers.
>
>
Hmmm... the only one I know like that (that
isn't on today) was Johnny Ball Reveals All.
It was a UK show though, but was great for
learning about science and stuff... except I
wasn't really into science much back then.
(Johnny Ball is Zoe Balls (famous Radio DJ/TV
Presenter) father).
There is, of course, How 2 aswell. That show
has been running in the UK since.... well, since
I was a teenager. That makes it atleast 15
years old. Fred Dinage and erm... the other
guy still do it, but Carol Vorderman left to do
other things.
Regards,
Andrew B
aliensrcooluk at yahoo.co.uk
>"Chuck Guzis" <cclist at sydex.com> wrote:
>> On 8/23/2006 at 8:19 PM O. Sharp wrote:
>>
>> >I've been thinking it'd be a good idea to buy and set aside some spare
>> >parts for the couple of DEC machines I have around... mostly 7400-series
>> >ICs, some switching transistors and such. It's been a while since I've
>> >bought parts, however. What places (preferably online) have you had good
>> >experiences with?
>>
>> BG Micro has some. http://www.bgmicro.com as does Jameco
>> http://www.jameco.com. Both have been around for ages and are fine to deal
>> with.
>
Add JDRmicrodevices to that list as well.
Me I scrounged enough TTL (in tubes) to make my former collection
look pitiful. Nothing like the right part in volume to make
prototypiing easier.
Allison
