IBM.
DOS
I believe the first was MS-DOS or Microsoft Disk Operating System.
Microsoft's first operating system was MS-DOS 1.1. MS-DOS was based on the operating system 86-DOS which was purchased by Microsoft. Microsoft licensed MS-DOS 1.1 to IBM who resold it as PC-DOS 1.0.
D.O.S. it is an operating system, it is the base for windows. That is incorrect. DOS was not their first product. Their first program was ALTAIR BASIC in 1975. DOS wouldn't come around until the release of the IBM PC in 1981.
It was actually operating system: MS-DOS.
The Disk Operating System that became MS-DOS is claimed to have come from work done by Digital Research. What money changed hands when Microsoft bought DOS would normally be 'commercial in confidence' or do not ask.
Tim Paterson was the original developer of QDOS, the system that Microsoft purchased and developed further into MS-DOS.
Microsoft first released Windows for sale on November 20, 1985. Windows 1.0 was an extension of MS-DOS and was not very popular.
the first OS was made by Microsoft called MS-DOS, released in July of 1981.
Dos command line to start Microsoft anti virus?
Microsoft did not create MS-DOS. They purchased the rights to 86-DOS, modified the kernel to meet the specifications of IBM, and released this updated version as MS-DOS 1.0.
yes