0 to develop operating systems for computers. One year ahead Microsoft has worked in cooperation on the Unix derivative operating system XENIX OS for different computer platforms, this OS field however was about windows xp operating system pdf to SCO in 1984. Up to 200 developers had programmed at the same time on the approx. While MS-DOS was programmed nearly completely in assembler, Windows NT also consists of source code of the programming language C.
Up to 450 developers were involved at the operating system Windows NT 3. 51 which was released in May 1995. To record times up to 800 developers worked on the successor Windows NT 4.