25 Jul
2001
25 Jul
'01
4:47 p.m.
On Wed, 25 Jul 2001 16:22:15 -0700 "Stan Sieler" <sieler(a)allegro.com>
writes:
The HP 300 (codename "Amigo") is an
exceedingly rare computer from
1978 or so, and didn't run Unix of any kind.
Pictures at: http://www.sieler.com/hp300/ (someone else's)
and http://www.sieler.com/hp300_2 (mine)
Whoa, that's one beat-up badboy you got there.
Does it run?
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26 Jul
26 Jul
9:47 a.m.
New subject: HP 300 (was: "what the hell")
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10:18 a.m.
New subject: HP 300 (was: "what the hell")
On Thu, 26 Jul 2001, Stan Sieler wrote:
The CPU was CISC, silicon-on-saphire, and
What a very interesting little machine. I am most intrigued. What do you
mean by "silicon on saphire" though?
- Dan
Dan Linder / dlinder @ uiuc.edu
Graduate Student, College of Engineering, Dept. of Computer Science
- Dept. of Computer Science Teaching Assistant
- DoRES Computer Accessibility Researcher
11:31 a.m.
New subject: HP 300 (was: "what the hell")
I think it's using sapphire as the substrate for the chip. ISTR, this is
done primarily in space applications where radiation hardening is
required.
g.
On Thu, 26 Jul 2001, Dan Linder wrote:
On Thu, 26 Jul 2001, Stan Sieler wrote:
The CPU was CISC, silicon-on-saphire, and
What a very interesting little machine. I am most intrigued. What do you
mean by "silicon on saphire" though?
- Dan
Dan Linder / dlinder @ uiuc.edu
Graduate Student, College of Engineering, Dept. of Computer Science
- Dept. of Computer Science Teaching Assistant
- DoRES Computer Accessibility Researcher
noon
New subject: HP 300 (was: "what the hell")
I think it's using sapphire as the substrate for
the chip. ISTR, this is
done primarily in space applications where radiation hardening is
required.
> > The CPU was CISC, silicon-on-saphire, and
>
> What a very interesting little machine. I am most intrigued. What do you
> mean by "silicon on saphire" though?
Didn't the 1802 microprocessor use this technology?
--
Eric Dittman
dittman(a)dittman.net
12:26 p.m.
New subject: HP 300 (was: "what the hell")
--- Eric Dittman <dittman(a)dittman.net> wrote:
> I think it's using sapphire as the substrate
for the chip. ISTR, this is
> done primarily in space applications where radiation hardening is
> required.
Didn't the 1802 microprocessor use this
technology?
Yes. That's why it went out on the Voyager probes. V'ger is descended
from the COSMAC Elf.
-ethan
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3:26 p.m.
New subject: HP 300 (was: "what the hell")
There are some 1802 varients that use SOS, but your every-day
1802 from RCA was not SOS.
Eric Dittman wrote:
I think
it's using sapphire as the substrate for the chip. ISTR, this is
done primarily in space applications where radiation hardening is
required.
> > The CPU was CISC, silicon-on-saphire, and
>
> What a very interesting little machine. I am most intrigued. What do you
> mean by "silicon on saphire" though?
Didn't the 1802 microprocessor use this technology?
--
Eric Dittman
dittman(a)dittman.net
8378
days inactive
8379
days old
6 comments
7 participants
participants (7)
-
bshannon＠tiac.net -
dittman＠dittman.net -
dlinder＠uiuc.edu -
ethan_dicks＠yahoo.com -
geneb＠deltasoft.com -
jeff.kaneko＠juno.com -
sieler＠allegro.com