Silicon Valley California USA, it is located in the southern part of San Francisco. They called Silicon Valley because this is the place of the leading manufacturer or silicon chip high tech engineering and manufacturing. The first radio station (1909) regularly scheduled programming in San Jose.

Cities located in Silicon Valley (north to south): Palo Alto Mountain View Los Altos Los Altos Hills Sunnyvale Santa Clara Milpitas Campbell Cupertino San Jose Saratoga Los Gatos Monte Sereno Morgan Hill Silicon-based IC and microcomputer develop and originated in Silicon Valley. More than 250,000 hightech workers among are skilled engineers and scientist from major universities.

Near Cities located in Silicon Valley (north to south): Foster City Redwood City Menlo Park Newark Fremont Santa Cruz Scotts Valley

The Internet Bubble or Dot-com Bubble started mid of 1990s and collapsed April 2000.