Silicon Valley In which city in the United States?

Silicon Valley in San Francisco

San Francisco, also translated as "San Francisco" and "San Francisco", is a port city on the Pacific coast of California, USA. It is a world-famous tourist destination and the most populous city in California. The fourth largest city. San Francisco is adjacent to Silicon Valley, the world-famous technology industry area. It is one of the world's important technology research and development bases and an important financial center on the West Coast of the United States.