Space computers (forwarded message)

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3 total messages Started by j... Jonathan A. Chandross Sun, 15 Apr 1990 03:10

#2322

Author: j... Jonathan A. Chandross
Date: Sun, 15 Apr 1990 03:10

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This is a forwarded message for someone who can read news but not post it.
Please be careful with attributions.

Jonathan A. Chandross
Internet: j...@paul.rutgers.edu
UUCP: rutgers!paul.rutgers.edu!jac
--------------------------------------------------------------------------------

The recent Nova (or Horizon over here) stated that the Space Telecscope is
still using early 1970's computing technology! I dunno if they have
upgraded this in the last couple of years.

There was a very good article in BYTE several years ago (early 80's) called
'One Step forward, Three Steps Backup'. Well worth reading.

The 1802 is the computer of choice on the last few OSCAR satelites (Orbital
Satelitte  Carrying Amateur Radio) -- they're rad-hard. The Inmos Transputer
will be used on the next mission (4 off -- multiprocessing in space).

Cheers,
Kevin

E-v-o-l-v-i-n-g--m-e-m-e-s------------H-a-z-a-r-d-o-u-s--i-f--s-w-a-l-l-o-w-e-d

Kevin 'fractal' Purcell               S U R F A C E  S C I E N C E  C E N T R E
kpurcell @ liverpool.ac.uk             Liverpool University, Liverpool L69 3BX
God is in the strange attractors.              I speak only for myself

Re: Space computers

#2323

Author: br... Brian Kantor
Date: Mon, 16 Apr 1990 05:24

4 lines
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Of the seven ham radio satellites launched this year, 2 from U of
Surrey (UO-14,15) use the 1802; the 4 microsats (AO-16,DO-17,WO-18,LU-19)
use an NEC V-40, and I dunno what's in the Japanese satellite FO-20.
	- Brian

Re: Space computers

#2326

Author: br... Brian Kantor
Date: Mon, 16 Apr 1990 22:12

8 lines
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In article <13...@ucsd.Edu> br...@ucsd.edu (Brian Kantor) writes:
>Of the seven ham radio satellites launched this year, 2 from U of
>Surrey (UO-14,15) use the 1802; the 4 microsats (AO-16,DO-17,WO-18,LU-19)
>use an NEC V-40, and I dunno what's in the Japanese satellite FO-20.

It seems I was misinformed; Harold Price says the UOSats have 80C186s
in them.
	- Brian

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