Tech History Today – June 21

In 1948 – The Small-Scale Experimental Machine, SSEM took 52 minutes to run its first program, written by Professor Tom Kilburn. SSEM was the first computer to store programs electronically.

In 1981 – IBM retired the last of its “STRETCH” mainframes. These mainframes were part of the 7000 series that made up the company’s first transistorized computers.

In 2004 – SpaceShipOne became the first privately developed piloted vehicle to leave Earth’s atmosphere and reach the edge of space.

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