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Check http://en.wikipedia.org/wiki/Apollo_Guidance_Computer http://en.wikipedia.org/wiki/Apollo_Guidance_Computer for more information. The strangest feature w
by russell 14y ago
Check http://en.wikipedia.org/wiki/Apollo_Guidance_Computer http://en.wikipedia.org/wiki/Apollo_Guidance_Computer for more information.
The strangest feature was its core rope memory. In order to save weight only the 1 bits had a core. Whenever a code change was made the memory had to be rewoven by hand by little old ladies, hence the name LOL memory.
This appears to be an earlier version, not the one that was used in the manned missions, the BLOCK II.
- jufo 14y agoI worked for Decca Navigator in the 1970s. They had two ladies (not particularly little or old) who made read-only program memories for the Decca Omnitrac civil aircraft navigation computers. These had core arrays with the sense line hand-woven through the cores, going through a core or bypassing it depending on whether that bit should read as a 0 or a 1. They worked from printed charts referred to as 'knitting patterns'.