Manchester University Atlas - 1960s 2 of 33
Atlas's core memory consisted of ferrite rings less than 2mm diameter, 64 x 64 rings on each panel, one x-wire, one y-wire, one signal wire, all threaded by hand. Compare this with the larger cores and higher power requirements of the earlier core memory of the Boots EMIDEC.
The Manchester / Ferranti Atlas had 48-bit words each containing eight 6-bit characters. The machine at first had 16k words of memory, eventually increasing to 48k words. It was designed by a Manchester University team lead by Tom Kilburn.
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