Here's why Apple is flying a pirate flag to celebrate its 40th anniversary

It's no joke — today, April 1, is Apple's 40th anniversary. Founded by Steve Jobs, Steve Wozniak and Ronald Wayne on April 1, 1976, Apple has transformed from scrappy upstart to one of the most powerful — and valuable — companies in the world.

To commemorate the 40th anniversary, Apple is flying a special pirate flag outside of its campus in Cupertino.

To understand the significance of the flag, you need to know a little bit of Apple history. 

Way back in January 1983, the members of the Mac team (led by Jobs) went on a retreat. Read more...