jan 1, 1947 - 1947: Transistor
Description:
On December 23 Bell Labs engineers John Bardeen, Walter Brattain, and William Shockley gave the first public demonstration of the transistor, an electrical component that could control, amplify, and generate current. The transistor was much smaller and used less power than vacuum tubes and ushered in an era of cheap small electronic devices.
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Geography ~ Phones History
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