Linked by Thom Holwerda on Mon 6th Aug 2012 14:42 UTC
OSNews, Generic OSes As the first images of the Mars Curiosity lander start pouring in, let's talk about what operating system it runs. As I found out via Hacker News, the project runs on VxWorks, a very popular embedded operating system used for truly mission critical tasks. I'd love to know just how much work has gone into making it bug-free - this isn't the kind of environment where you want code to fail.
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RE: Not new
by Treza on Mon 6th Aug 2012 18:34 UTC in reply to "Not new"
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is there some internal movement to make x86 the "premier" architecture, towards some radiation-hardened x86 chips?

Intel does not manufacture anymore simple CPUs (Pentium class) nor it sells IPs to third parties (unlike ARM).
All current Intel designs are extremely unsuited for really critical applications, as they are far too complex and non deterministic (impossible to prove the temporal behaviour).
In addition, space applications often use special semiconductor processes (>100nm for radiation hard) and modifications of the sources, like, for example, using triple redundancy for registers.

Curiosity is based on a IBM-derived PowerPC RAD750 (G3) running at 200 MHz.

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