Stock Photo - 14 May 2019, North Rhine-Westphalia, Paderborn: Electrical engineer Rainer Mallebrein shows the first computer mouse. Worldwide there are only four copies left: The inventor of the very first computer mouse has now given away one of the rare devices to North Rhine-Westphalia. ""That's the primal mouse. We were way ahead of our time. We developed them between 1965 and 1968, when there were no personal computers, not even the word PC,"" the 85-year-old said in Paderborn on Tuesday. Photo: Dieter Menne/dpa. - Paderborn/North Rhine-Westphalia/Germany

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