Silicon Valley refers to the southern part of the San Francisco Bay Area in Northern California encompassing San Jose, Santa Clara, Cupertino, Mountain View, Palo Alto and surrounding areas. The region is home to many of the world's largest technology corporations. The term originally referred to the region's large number of silicon chip innovators and manufacturers, but eventually came to refer to all the high-tech businesses in the area (Apple, IBM, HP, Google, Facebook, Ebay, etc.).
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