Relic Information query matches
Matching on query: Unique id = 69/99, Name = any, Associated machine = any, class = any
Unique id/year of acquisition: 69/99
Name: EDSAC II Control matrix
EDSAC II Control matrix
Machine: EDSAC II
The control matrix housed the ferrite cores which stored the microprogramme for EDSAC II. This plastic housing contained 16 13mm cores and associated wiring, 64 such units were needed (in an 8 x 8 flat array), making 1024 cores in all. Smaller core memories were used in other parts of EDSAC II.
See also: 70/99
Number of matches = 1
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