Silicon Valley is the name of the southern part of San Francisco Bay in California. The name stems from the many computer and IT-based companies in the area.

In many ways Silicon Valley has become synonymous with innovative companies and businesses relating to computer science, technology, etc.

Some of the famous companies of Silicon Valley include Apple, Adobe, Pixar, Google, Dreamworks, Electronic Arts, Logitech and Yahoo.

Keynote speakers on Silicon Valley take a closer look at this HQ of technology.