A quick look back at Microsoft’s first computer operating system, Xenix November 12, 2023 by admin Tweet Long before Windows, and even before MS-DOS, Microsoft sold a Unix-based operating system it called Xenix in 1980. It was the first OS made by the company, but it eventually sold it off in 1987. Read more… Neowin Related Posts:A quick look back at Microsoft's first PC hardware…A quick look back at BeOS, the PC operating system…A quick look back at Microsoft Pinball that was…A quick look back at the actual launch of Microsoft…A quick look back at Microsoft's brief time when it…
