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The Humble Transistor

Transistors - Definition, How They are Made & Work


History of the Transistor

History of the Transistor

Mary Bellis Source Army Photos
The name transistor comes from the word 'trans' of transmitter and the word 'sistor' of resistor.

Definition of a Transistor

A device composed of semiconductor material that amplifies a signal or opens or closes a circuit, transistors have become the major componet in all digital circuits, including computer microprocessors which now contain millions of microscopic size transistors. Prior to transistors, digital circuits used vacuum tubes which had many disadvantages, they were larger, used more energy, and created more heat.

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