Philip Don Estridge also known as Don Estridge, born June 23 1937 and died in August 2, 1985. Don Estridge who was an American computer engineer was led development of the original IBM Personal Computer which made him known as ”father of the IBM PC”.Don Estridge who has graduated from Kenny High School in 1955, also went to the university of Florida 1959. Don Estridge had got a bachelor degree in electrical engineering at the university of Florida, and was working in the army. While in the army he was designing a working radar system using computers, IBM and NASA’s Goddard Space Flight Center until he moved to Boca Raton, Florida in 1969. Though Don Estridge was a brilliant, minded person he did not win any personal awards. With Don Estridge goal of creating a low cost personal computer against other competitors such as apple computer, he took control of a small Entry Level Systems division in 1980. When creating a budget computer he had realized he would need to use great deals of third party hardware and software. Estridge had also published the specifics of the IBM PC, which allowed third party aftermarket hardware's to take advantage of the machine expansion card slots.Don Estridge facts that had interested me was that one of Estridge inventions was the biggest flop in computing history. Don Estridge had helped other businesses to create better hardware.