Transistor
A transistor is a semiconductor device that can amplify or switch electronic signals. It is composed of three layers of semiconductor material, each capable of carrying a current. The transistor is the fundamental building block of modern electronic devices, including computers, smartphones, and digital audio players. It is used in a wide range of applications, from simple amplifiers to complex digital circuits. The invention of the transistor in 1947 by John Bardeen, Walter Brattain, and William Shockley at Bell Labs revolutionized the electronics industry and paved the way for the development of modern computers.
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