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In the April 28th 1955 edition of the Wall Street Journal, Chrysler and Philco announced that they had developed and produced the world's first all-transistor car radio. [50] Chrysler made the all-transistor car radio, Mopar model 914HR, available as an "option" in Fall 1955 for its new line of 1956 Chrysler and Imperial cars, which hit the ...
Vacuum tubes remained the preferred amplifying device for 40 years, until researchers working for William Shockley at Bell Labs invented the transistor in 1947. In the following years, transistors made small portable radios, or transistor radios, possible as well as allowing more powerful mainframe computers to be built. Transistors were ...
Japanese engineer Jun-ichi Nishizawa invented the avalanche photodiode [20] 1953: First fully transistorized computer in the U.S. 1958: American engineer Jack Kilby invented the integrated circuit (IC). 1960: American engineer Theodore Maiman develops the first laser: 1962: Nick Holonyak invented the LED. 1963: First home Videocassette recorder ...
The first bipolar junction transistors were invented by Bell Labs' William Shockley, who applied for patent (2,569,347) ... MOS transistors every year, [90] ...
The MOSFET made it possible to build high-density integrated circuit chips. [58] The earliest experimental MOS IC chip to be fabricated was built by Fred Heiman and Steven Hofstein at RCA Laboratories in 1962. [61] MOS technology enabled Moore's law, the doubling of transistors on an IC chip every two years, predicted by Gordon Moore in 1965. [62]
The first working transistor, a germanium-based point-contact transistor, was invented by John Bardeen and Walter Houser Brattain at Bell Labs in 1947, [31] followed by the bipolar junction transistor in 1948. [32]
The earliest pipes were made of clay, and are found at the Temple of Bel at Nippur in Babylonia. [126] [b] 4000 BC: Oldest evidence of locks, the earliest example discovered in the ruins of Nineveh, the capital of ancient Assyria. [129] 4000 BC – 3400 BC: Oldest evidence of wheels, found in the countries of Ukraine, Poland, and Germany. [130 ...
Over the next 20 years, transistors replaced tubes almost completely except for high-power transmitters. By the mid-1960s, the Radio Corporation of America (RCA) were using metal–oxide–semiconductor field-effect transistors (MOSFETs) in their consumer products, including FM radio, television and amplifiers. [67]