The buildings were used solely for research and development for the first four years that the campus was being used by Apple. In 1997, other buildings and tasks were added to the grounds to make it more of a headquarters.
Apple decided to expand into a second campus in 2006 and construction on Apple Campus 2 began in 2014 after some delays occurred. The new campus will sit on 175 acres of land and is expected to cost billions of dollars to construct. The building will include research facilities as well as housing for employees.
Apple campus is also home to the company store where visitors can buy a shirt that says “I Visited The Mother Ship. For those interested in learning more about the history of Apple computers, please consider visiting Steve Jobs' Garage, which is also an entry on Clio.