This April 16th and 17th marks the 35th anniversary of the 1977 West Coast Computer Faire in San Francisco, better known as the event where Steve Wozniak and Steve Jobs first demonstrated the legendary Apple II. The hugely successful personal computer set a trend at the company for iconic design and provided a platform for development every bit as rich for the time as Mac OS and, later, iOS. To mark the anniversary, Time has posted a tribute piece remembering the Apple II and going into detail on its hardware, marketing, and legacy. The chances that you still have a working model in your office are slim, but you may well be reading this article on a device that can trace a path of development straight back to Apple's second trailblazer.