Welcome to California’s tech-centric brain pool. Wrapping around the south end of San Francisco Bay, the communities collectively known as Silicon Valley are home base for the heart and soul of computer technology, including silicon chip technology, computer design, apps and Apples, smart phones—smart everything. Some companies are so big and so influential that their names have become part of our vocabulary (if you don’t believe us, just Google it). Hike or bike a trail and overhear the next big idea. Visit a museum that blinks and buzzes with what-if technology. And enjoy the riches of a booming economy, with performance spaces, high-end shopping, and multi-starred restaurants.