The IBM 5170 PC/AT, launched August 14, 1984, is a very popular retro PC, for several reasons. It was the last of the open architecture IBM PCs. And from 1984 to about mid-1987, it was the fastest and most expensive IBM PC. It wasn’t the fastest PC in its category. Compaq took care of that. But if you wanted true blue IBM, this was the machine. It was also controversial, both in its heyday and even today. Let’s talk about why.

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.










