Sunnyvale, city (1990 pop. 117,229), Santa Clara co., W Calif., near San Francisco; settled 1849, inc. 1912. A city in Silicon Valley, its many manufactures include semiconductors; machinery and instruments; electrical, electronic, and aerospace products; communications and medical equipment; and software. Sunnyvale's population increased significantly in the late 20th cent.
"Sunnyvale." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (March 22, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/sunnyvale
"Sunnyvale." The Columbia Encyclopedia, 6th ed.. . Retrieved March 22, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/sunnyvale