The integrated circuit, or computer chip, reached a major milestone 66 years ago this week, when Jack Kilby, an engineer at Texas Instruments, filed a patent for “miniaturized electronic circuits,” a multi-transistor device on Feb. 6, 1959.

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.










