Tech history in photos: Software giants of the 1970s

Gary Kildall, founder of Digital Research

Kildall is known as the creator of the CP/M operating system. IBM made an unsuccessful attempt at licensing CP/M for the IBM PC.

Image: Stewart Cheifet/the Computer Chronicles

By Conner Forrest

Conner Forrest is an analyst for 451 Research. He was formerly a Senior Editor for TechRepublic.