Microsoft's biggest hits and misses
The company that Gates built has seen its share of ups-and-downs. Here's a look at some of his greatest successes and failures in the past 30 years.
April 4, 1975
Gates drops out of Harvard after landing a deal to develop a BASIC operating system for a new microcomputer created by Micro Instrumentation and Telemetry Systems, based in Albuquerque. He moves to New Mexico with high school friend Paul Allen and they found Micro-Soft. NEXT: HIT: MS-DOS
Last updated June 25 2008: 4:03 PM ET