TRANSISTOR

It is an electronic component made of a semiconductor material (great connectivity and insulating at the same time), which can regulate and amplify a current that passes through it, consuming very little energy. They replaced the thermionic valves, which needed time to warm up and take action, were larger, used more power, and broke down frequently. Radio, telegraph and television were improved, with the possibilities opened up by the transistor and semiconductors (silicon and germanium), very important for the industrial world. Researchers ended up becoming entrepreneurs and that was the origin of Silicon Valley (Silicon Valley SE of San Francisco), with such important figures as Frederick Terman, professor and director of the school of engineering at Stanford University and William Shockley, leaving Bell Laboratories and founding his Shockley semiconductor laboratory). Then the radios will be mobile through transistors and can be installed in cars and other places without being located in an immobile place.