Inventions of the 1960s

The Hand held calculator

The hand held calculator was invented in 1967, its a good device for people who hate doing math in their heads or just lazy to show work. Nowadays you can find calculators in you cellphone.
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Audio Cassettes

They were invented by Netherlands on march 5 , 1962 .The Phillips co. used high Quality polyester produced by a German chemical company BASF.
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Computer mouse

it was invented in 1963 by a guy named Douglas Engelbart. The first computer mouse was carved out of wood and had two wheels mounted on the bottom unlike the ones we use today.
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1960's Inventions