DOS, which stands for Disk Operating System.
os for IBM
The MVS operating system was the most commonly used operating system used on mainframe computers. The MVS operating system was developed by IBM and was first released in 1974.
The original operating system for an IBM PC with Intel Processor was DOS (disk operating system) which operated at a command level prompt of C:
Win98
ibm
DOS, which stands for Disk Operating System.
ibm
os/2
os for IBM
Unix DOS
The MVS operating system was the most commonly used operating system used on mainframe computers. The MVS operating system was developed by IBM and was first released in 1974.
The first simple "operating system" was a program called IBSYS that IBM released for the IBM 7090 transistorized computer in 1960. IBSYS was derived from a program IBM's customer General Motors had written for their IBM 701 and IBM 704 computers and contributed to the IBM computer users group SHARE. SHARE had rewritten General Motor's original program, calling it SHARE Operating System for the IBM 704 and IBM 709 which was the version adapted by IBM to make IBSYS. IBSYS was not like modern operating systems however and would now be called a batch monitor program..
The original operating system for an IBM PC with Intel Processor was DOS (disk operating system) which operated at a command level prompt of C:
windows NT
Win98
DOS stands for Disk Operating System.DOS was the operating system used by IBM on the first Personal Computer (PC) - hence PC-DOS.