On April 4, 1975, childhood friends Bill Gates, then 19, and Paul Allen, then 22, founded Microsoft, a company that makes computer software. Originally based in Albuquerque, New Mexico, Microsoft relocated to Washington State in 1979 and from there grew into a major multinational technology corporation. In 1987, the year after Microsoft went public, Gates became the world’s youngest billionaire at age 31.

David Farquhar is a computer security professional, entrepreneur, and author. He has written professionally about computers since 1991, so he was writing about retro computers when they were still new. He has been working in IT professionally since 1994 and has specialized in vulnerability management since 2013. He holds Security+ and CISSP certifications. Today he blogs five times a week, mostly about retro computers and retro gaming covering the time period from 1975 to 2000.










