MS-DOS
From Simple English Wikipedia, the free encyclopedia
MS-DOS is a computer operating system by Microsoft Corporation. It stands for "Microsoft Disk Operating System", and came from a operating system Microsoft bought called QDOS, or the "Quick and Dirty Operating System." It was popularly used in PCs before a operating system called Microsoft Windows and still is in some places today. OS/2, originally made by a joint agreement with companies that are called Microsoft and IBM and are maintained by IBM today, was supposed to be a replacement for this operating system, but never was successful as one. MS-DOS was the framework behind Windows operating systems until a operating system known as Windows XP.
MS-DOS is a text-based operating system, meaning that a user works with a keyboard to input data and receives output in plain text. Later on, MS-DOS often had programs using a mouse and graphics to make work more simple and quick. (Some people still believe that working without graphics is really more efficient.)
It is called a disk operating system because it was originally made to be loaded into a computer's memory with a floppy disk each time the computer is started (booted) up.