Revisionist historians talk about how MS-DOS standardized computer operating systems and changed the industry. That’s very true. But what they’re ignoring is that there were standards before 1981, and the standards established in 1981 took a number of years to take hold.
David Farquhar is a computer security professional, entrepreneur, and author. He started his career as a part-time computer technician in 1994, worked his way up to system administrator by 1997, and has specialized in vulnerability management since 2013. He invests in real estate on the side and his hobbies include O gauge trains, baseball cards, and retro computers and video games. A University of Missouri graduate, he holds CISSP and Security+ certifications. He lives in St. Louis with his family.