[acomjean]

My os book in college had an appendies on various OS.

Online the oldest is the 7th edition appendies which has details on A)Unix bsd B)Mach and c)windows 2000.

Windows 2000 was the next version of NT. Interesting if long reads about OS architecture.

http://bcs.wiley.com/he-bcs/Books?action=resource&itemId=047...

“ n the mid-1980s, Microsoft and IBM cooperated to develop the OS/2 operating system, which was written in assembly language for single-processor Intel 80286 systems. In 1988, Microsoft decided to make a fresh start and to develop a “new technology” (or NT) portable operating system that supported both the OS/2 and POSIX application programming interfaces (APIs). In October 1988, Dave Cutler, the architect of the DEC VAX/VMS operating system, was hired and given the charter of building this new operating system.”