Silicon Valley is located south of the San Francisco Bay Area. It crosses four counties: from San Mateo to Gilmore, Fremont, Scotts Valley, and beyond. There are forty cities in Silicon Valley.
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Silicon Valley is the home of semiconductor chips manufacturers. Semiconductor chips are made of silicon, which is composed of fine sand. A newspaper nicknamed the region "Silicon Valley" because it is the heart of technological development.
Forty-one years ago, in 1971, it earned its nickname.
Technology that is either enviromentally friendly or new originates in Silicon Valley. At least one component of everything computerized has come from there. This makes it the central location for all technology.