SSEC goes on display
The Selective Sequence Electronic Calculator (SSEC) project, led by IBM engineer Wallace Eckert, uses both relays and vacuum tubes to process scientific data at the rate of 50 multiplication per second. Before it’s decommissioning in 1952, the SSEC produced the moon-position tables used for plotting the course of the 1969 Apollo flight to the moon. The SSEC was one of the few and last of the generation of ‘super calculators’ to be built using electromechanical technology.
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