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Operating systems used in spacecraft?
Michael J Wise wrote:
3) Redundant CPUs, one of which is running a different operating system, so if the other two get frotzed by Yet Another Windows Exploit in deep space, the Penguin can Save The Day. Or the Mac, as the case may be. Henry Spencer wrote: Only if the Windows machine(s) haven't already fired the pyros, left the gas valves open, pointed the camera at the Sun, etc. Doesn't the Shuttle have three computers all running in parallel, with majority vote ruling? That sounds like a good system. Two machines would have to have the same bug for anything to go wrong. Of course bugs in the *specification* from which the three programs were all independently written are possible. -- Keith F. Lynch - - http://keithlynch.net/ I always welcome replies to my e-mail, postings, and web pages, but unsolicited bulk e-mail (spam) is not acceptable. Please do not send me HTML, "rich text," or attachments, as all such email is discarded unread. |
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