MS-DOS was based upon 86-DOS by Seatle Computer Works. When IBM developed their first PC, they approach Microsoft to write the operating system; at that time, Microsoft wrote computer applications and, in particular, languages - MSBASIC was the industry standard - and didn't have an operating system. Bill Gates realised the opportunity and bought the rights to 86-DOS which was renamed MS-DOS to supply for the IBM-PC.
Microsoft Disc Operating System
MSDOS was officially released in 1981 by Microsoft.
No. Office 2007 requires Windows.
MicroSoft - Disk Operating System
Microsoft with Bill Gates he later left before MSDOS
PCDOS an IBM branded version of MSDOS, licensed to IBM. Eventually IBM abandoned it and MicroSoft took over direct marketing of MSDOS.
Microsoft was founded in 1975
QDOS was a subset of CP/M, then Microsoft bought QDOS and made it MS-DOS. FOXTROT!
yes
Steve Jobs did not invent Microsoft it was actually Bill Gates but Jobs lied about it in his biography
Yes it is made by Microsoft. The founder of Microsoft was Bill Gates. They did not invent glass however.
Microsoft