| Developed by John Bardeen, Walter Brattain, and William Shockley at the Bell Laboratories in 1947, a transistor is made up of semi-conductors and is a component used to control the amount of current or voltage and/or used for amplification/modulation or switching of an electronic signal. In 1954, IBM announced it was no longer planning to use vacuum tubes in its computers and introduced its first computer that had 2000 transistors. Transistors quickly replaced vacuum tubes and today are found in virtually all electronic devices. Also see: Electronics definitions, IC,
Moore's Law, Power definitions, Solid-state device | |
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