Silicon Valley is in the southern part of the San Fransisco Bay area in the North part of California. It is called Silicon Valley becasuse during the Microcomputer Revolution of the 1970s, silicon was used as a component in computer chips. The area was first called this in 1971 by Donald Hoefler. What is so important about Silicon Valley is it is the location of many American companies that specialize in computers and technology. These companies include Apple, Ebay, Google, Facebook, and other companies. Bill Gates didn't build a computer, he wrote a computer language for computers. His first language he wrote was MS-BASIC for the computer company Altair in Albuquerque, New Mexico, which is where he co-founded Microsoft.
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Posted By Robert Vandiver