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Originally Posted by Xaccers
I love how they each check the others, and if there's a discrepency, they vote on which answer to go with!  |
Appart from when teo break and then they flip a virtual coin!!!
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In the rare case of two out of four computers simultaneously failing (a two-two split), one group is picked at random.
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http://en.wikipedia.org/wiki/Space_Shuttle
And according to Wikipedia they run HAL
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The software for the Shuttle computers is written in a high-level language called HAL/S, somewhat similar to PL/I. It is specifically designed for a real time embedded system environment.
The IBM AP-101 computers originally had about 424 kilobytes of magnetic core memory each. The CPU could process about 400,000 instructions per second. They have no hard disk drive and load software from magnetic tape cartridges.
In 1990 the original computers were replaced with an upgraded model AP-101S, which has about 2.5 times the memory capacity (about 1 megabyte) and three times the processor speed (about 1.2 million instructions per second). The memory was changed from magnetic core to semiconductor with battery backup.
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