In 1975, USC need to upgrade the System/360-58 from 1/2
MB of RAM to 1 MB. The IBM 2361 core memory cost $1 million. We bought Intel semiconductor memory for $1/4 million. We were pioneers. I got an Intel LCD watch - last watch I ever had. The Intel office was on Rosecrans two blocks east of the Pacific movies. |
The thimble actually contains 50,000 cores. |
Workmen mounting core memory unit into JOHNNIAC, c. 1957 | |||||
MIT magnetic core memory US c. 1957 |
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Magnetic core memory (IBM 360/91) US 1969 |
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Elements of Core Memory
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Early 16 x 16 ceramic core plane | |||||
Front face of a Williams Tube, bright
spots were 1s, faint spots were 0s
(CRT storage - before Core Memory) |