Hal Prewitt

Harold D. Prewitt, Jr (Hal) (born October 1, 1954 in Hutchinson, Kansas) is an artist, photographer, race car driver, businessperson, inventor of personal computer products and early pioneer in the personal computer revolution. He resides in South Beach (Miami Beach, Florida) and Park City, Utah.

Prewitt competes in professional and occasionally amateur motorsport road races and has driven in more than 180 endurance racing or sprint races worldwide. He is a regular competitor in the Grand-Am Rolex Sports Car Series and at international FIA races including 24 Hours of Daytona, 24 Hours Nürburgring, Dubai 24 Hour, 24 Hours of Barcelona and Silverstone Britcar 24-Hour.

In the 1970s and 1980s he was one of the early creators of personal computer products, developing popular software and hardware while helping build a new industry. He provided consulting services to IBM and is credited with inventing hard disk drives and a local area network for their first portable computer the IBM 5100, and their first desktop computer the IBM 5120.