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- 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). Prewitt competed in professional and occasionally amateur motorsport road races and has driven in nearly 200 endurance racing or sprint races worldwide. He was the No. 1 American and finished 4th of 819 international drivers from 58 countries in the 2015 International Endurance Series Championship. He has been a competitor in IMSA, 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 world's first local area network (LAN) for their first portable computer, the IBM 5100, and their first desktop computer the IBM 5120. He created the technology and trademarked Hotplug the computer's industries standard method of replacing computer system components without the need for stopping or shutting down key parts such as disk drives, disk controller or host adapter and power supplies. Prewitt's first patent details were disclosed in 1987 in USA and Europe related to development of the technology however the filings were not completed. The trademark was issued by the USPTO and other countries in 1992 under "Computer & Software Products & Electrical & Scientific Products Trademarks". Skilled in computer programming and engineering, Prewitt founded and managed a number of technology firms. The largest and best known was Core International, a developer of disk array, computer data storage and backup products. Core created and in 1990 marketed the world's first disk drives, disk controller or host adapter and power supplies that were hot pluggable or swappable. Prewitt was chairman and chief executive officer until 1993 when the company was sold to Sony. Prewitt is the Managing Member of Prewitt Enterprises, a Florida-based agricultural and investment business. (en)
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- 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). Prewitt is the Managing Member of Prewitt Enterprises, a Florida-based agricultural and investment business. (en)
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