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#1
October 25th 08, 08:06 PM
posted to comp.sys.intel
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486 on the Hubble
I see that the Hubble uses the mighty i80486 for a CPU, I wonder if this
was some mil spec, rad hard, super gee-whiz version or the standard CPU. Powered off for 19 years and came up, I'm impressed. -- Bill Davidsen He was a full-time professional cat, not some moonlighting ferret or weasel. He knew about these things. 
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#2
October 25th 08, 08:25 PM
posted to comp.sys.intel
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486 on the Hubble
In article ,
(Bill Davidsen) wrote: I see that the Hubble uses the mighty i80486 for a CPU, I wonder if this was some mil spec, rad hard, super gee-whiz version or the standard CPU. Powered off for 19 years and came up, I'm impressed. Probably a hardened one. Harris Semiconductor used to make hardened versions of Intel CPUs, before Intel decided not to have second-sourcing any more. -- John Dallman "C++ - the FORTRAN of the early 21st century."
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#3
October 27th 08, 09:14 PM
posted to comp.sys.intel
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486 on the Hubble
Bill Davidsen wrote:
I see that the Hubble uses the mighty i80486 for a CPU, I wonder if this was some mil spec, rad hard, super gee-whiz version or the standard CPU. Powered off for 19 years and came up, I'm impressed. The next set of processors might well be off-the-shelf AMD processors, as they use SOI technology in their manufacture. SOI was originally designed for aerospace industry to guard against the extra radiation that occurs at high altitudes. Yousuf Khan
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