MS-DOS was the dominant computer operating system of the 1980s and early 1990s. It was the operating system most people loved to hate, yet it remained a bestseller. It formed the foundation of Microsoft’s market dominance of the 1990s and beyond. What were the advantages and disadvantages of MS-DOS?
MS-DOS stood for Microsoft Disk Operating System. It also licensed it to IBM, who branded it PC DOS, for Personal Computer Disk Operating System. The differences between the two were relatively minor and they are more or less interchangeable, especially at versions 5.0 and lower.

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.









