Question: Who was the programmer of ms-dos operating system?

context: Tim Paterson (born 1956) is an American computer programmer, best known for creating 86-DOS, an operating system for the Intel 8086. This system emulated the application programming interface (API) of CP/M, which was created by Gary Kildall. 86-DOS later formed the basis of MS-DOS, the most widely used personal computer operating system in the 1980s.
question: Who was the programmer of 86-DOS, the basis of the ms-dos operating system?
short_answers: Tim Paterson
context: MS-DOS ( ; acronym for Microsoft Disk Operating System) is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and some operating systems attempting to be compatible with MS-DOS, are sometimes referred to as "DOS" (which is also the generic acronym for disk operating system). MS-DOS was the main operating system for IBM PC compatible personal computers during the 1980s, from which point it was gradually superseded by operating systems offering a graphical user interface (GUI), in various generations of the graphical Microsoft Windows operating system.
question: Which company was the programmer of ms-dos operating system?
short_answers: Microsoft

Answer: The MS-DOS operating system had several programmers. The company Microsoft, a multinational technology corporation, was the programmer of MS-DOS itself. American computer programmer Tim Paterson was the programmer of 86-DOS, an operating system for the Intel 8086 which later formed the basis of MS-DOS.