1999


 * January 5: Apple Computer interim CEO Steve Jobs hosts the keynote event at Macworld Expo in San Francisco, where he introduces the blue & white Power Macintosh G3 tower, Mac OS X Server, and the new 266 MHz version of the iMac G3 in "Five Flavors".
 * January 31: Apple runs its first Super Bowl commercial in years, to promote that Mac OS does not have a Y2K bug, though the 2020 bug would not be fixed until Mac OS 9.0.4 was released in April 2000.
 * February 21: Apple interim CEO Steve Jobs presents the keynote event of Macworld Expo in Tokyo, recapping introductions from the January 5 Macworld Expo in San Francisco.
 * March 16: Mac OS X Server 1.0 is released.
 * April 14: The 333 MHz iMac G3 (Revision D) is released.
 * May 10-14: The 1999 Worldwide Developers Conference is held at the San Jose McEnery Convention Center, where Mac OS 8.6 is introduced on the opening day.
 * October 23: Mac OS 9 is released.