The first version of Windows NT, version 3.1 (to coincide with the then-current 16-bit version of Windows) was released 20 years ago today. It was an insanely ambitious effort for Microsoft that took a while to pay off, though it eventually did in spades. Windows NT was what killed off Novell and OS/2 and turned the proprietary operating system market into a duopoly. Although a user running it wouldn’t see much difference between Windows NT and regular Windows except that it didn’t crash nearly as much, it was the first version of Windows that qualifies as a modern operating system, with pre-emptive multitasking and protected memory.
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.