A profile on computer pioneer Gary Kildall and the important contributions he made to the PC industry including the true story on how IBM ended up using MS-DOS rather than CP/M. Kildall developed CP/M, the first personal computer operating system. He was also a co-host on the early Computer Chronicles series. Includes comments by Gordon Eubanks, Symantec; Tom Rolander, DRI; Tim Bajarin, Creative Strategies; Lee Lorenzen, DRI; Jacqui Morby, TA Associates; Alan Cooper, CP/M applications developer. Originally broadcast in 1995.