'Transistor radio' diaporamas de présentation

Electric Current

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Computer History

Computer History. ABACUS 4 th Century B.C. The abacus, a simple counting aid, may have been invented in Babylonia (now Iraq) in the fourth century B.C. This device allows users to make computations using a system of sliding beads arranged on a rack. First Computer. ABACUS.

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INNOVATION MANAGEMENT IN DESIGN PROCESS

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Transistors

Transistors. After the World War 2 (1948) the Transistor was invented in the Bell Laboratories in the USA (by Bardeen, Brattain and Shockley). The First Transistor. The First Transistor Colour

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