Starting Point: Santa Clara Street     Silicon Valley is a nickname for the southern portion of the San Francisco Bay Area, in the northern part of the U.S. state of California. The "valley" in its name refers to the Santa Clara Valley in Santa Clara County, which includes the city of San Jose and surrounding cities and towns. San Jose's location within the booming local high tech industry earned the city the nickname "Capital of Silicon Valley".  The word "silicon" originally referred to the large number of silicon chip innovators and manufacturers in the region, but the area is now the home to many of the world's largest high-tech corporations, including the headquarters of 39 businesses in the Fortune 1000, and thousands of startup companies. Silicon Valley also accounts for one-third of all of the venture capital investment in the United States, which has helped it to become a leading hub and startup ecosystem for high-tech innovation and scientific development. It was in the Valley that the silicon-based integrated circuit, the microprocessor, and the microcomputer, among other key technologies, were developed. As of 2013, the region employed about a quarter of a million information technology workers.           The large concentration of high-technology engineering, computer, and microprocessor companies around San Jose has led the area to be known as Silicon Valley. As the largest city in the valley, San Jose has billed itself "the capital of Silicon Valley." Area schools such as the University of California, Berkeley, University of California, Santa Cruz, San Jose State University, San Francisco State University, California State University, East Bay, Santa Clara University, and Stanford University pump thousands of engineering and computer science graduates into the local economy every year.           San Jose lists many companies with 1,000 employees or more, including the headquarters of Adobe, Altera, Brocade Communications Systems, Cadence Design Systems, Cisco Systems, eBay, Lee's Sandwiches, Lumileds, PayPal, Rosendin Electric, Sanmina-SCI, and Xilinx, as well as major facilities for Becton Dickinson, Ericsson, Hewlett-Packard, Hitachi, IBM, Kaiser Permanente, KLA Tencor, Lockheed Martin, Nippon Sheet Glass, Qualcomm, and AF Media Group. The North American headquarters of Samsung Semiconductor are located in San Jose. Approximately 2000 employees will work at the new Samsung campus which opened in 2015. Other large companies based in San Jose include Altera, Atmel, CEVA, Cypress Semiconductor, Echelon, Extreme Networks, Harmonic, Integrated Device Technology, Maxim Integrated, Micrel, Move, Netgear, Novellus Systems, Oclaro, OCZ, Online Trading Academy, Quantum, SunPower, Sharks Sports and Entertainment, Supermicro, Tessera Technologies, TiVo, Ultratech, and VeriFone. Sizable government employers include the city government, Santa Clara County, and San Jose State University. Acer's United States division has its offices in San Jose. Prior to its closing, Netcom had its headquarters in San Jose.