In 1884, the first U.S. patent for ball-bearing roller skates was issued to Levant M. Richardson of the Richardson Skate Company, Chicago, Illinois. This design allowed until then unseen speed. (No. 308,990)
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In 1960, the first electronic computer to employ thin-film memory was announced when Sperry Rand Corporation, of St. Paul, Minn., unveiled a new computer, known as Univac 1107
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In 1968, the first demonstration of the use of a computer mouse was given at the American Federation of Information Processing Societies' Fall Joint Computer Conference at Stanford University, California. The mouse's inventor, Doug Engelbart and a small team of researchers from the Stanford Research Institute stunned the computing world with an extraordinary demonstration at a San Francisco computer conference.
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