Siliconvalley英美文化硅谷展示PPT.pptVIP

Silicon Valley Geographical position Part2 Part4 Part3 History Part4 Part5 Demographics Part1 Demographics Economics Universities, colleges, and trade schools Introduction 1 引入 Silicon Valley Refers to the high concentration of companies involved in the making of semiconductors?(silicon is used to create most semiconductors commercially) Refers to the Santa Clara Valley where it is centered, including San Jose and surrounding cities and towns. A nickname for the southern portion of the?San Francisco Bay Area?in the United States.? Home to many of the worlds largest?high-tech corporations, as well as thousands of tech?startup companies. A leading hub（中心） and?startup ecosystem?for high-tech innovation and development, accounting for one-third of all of the?venture capital investment in the United States. Geographical position 2 地理位置 Geographically, Silicon Valley is generally thought to encompass all of the Santa Clara Valley, the southern half of the Peninsula, and southern portions of the East Bay. History 3 历史 United States Navy The Bay Area had long been a major site of United States Navy research and technology. In 1933, Air Base Sunnyvale, California, was commissioned by the United States Government for use as a Naval Air Station (NAS) to house the airship USS Macon in Hangar One. The station was renamed NAS Moffett Field, and between 1933 and 1947, U.S. Navy blimps were based there. A number of technology firms had set up shop in the area around Moffett Field to serve the Navy. When the Navy gave up its airship ambitions and moved most of its west coast operations to San Diego, the National Advisory Committee for Aeronautics (NACA, forerunner of NASA) took over portions of Moffett Field for aeronautics research. Many of the original companies stayed, while new ones moved in. The immediate area was soon filled with aerospace firms, such as Lockheed. During the 1940s and 1950s, Frederick Terman encouraged faculty and graduates to start their own comp