What is DOS Disk Operating System DOS Disk Operating System is an operating system that runs from a hard disk drive. Von Kopf Bis Fuss Ebook Download more. The term can also refer to a particular family of disk operating systems, most commonly MS DOS Microsoft Disk Operating System. By submitting your personal information, you agree that Tech. Target and its partners may contact you regarding relevant content, products and special offers. You also agree that your personal information may be transferred and processed in the United States, and that you have read and agree to the Terms of Use and the Privacy Policy. Create Ms Dos Program' title='Create Ms Dos Program' />Create your free blog with Blogger. Your blog is whatever you want it to be. An operating system OS is the software that controls a computers hardware and peripheral devices and allows other programs to function. Early computers did not have disk drives but were hard wired to carry out specific computations. Later, computers were able to store instructions loaded into the computers memory using punch cards and later magnetic tapes. Computer memory space was limited and when the instructions to control a computer were moved onto a disk drive, such as a floppy disk or internal hard drive, it was considered cutting edge technology. Today, any modern operating system would be considered a disk operating system. Disk operating system is also used to describe several very similar command line disk operating systems. Create Ms Dos Program' title='Create Ms Dos Program' />MSDOS was a renamed form of 86DOS owned by Seattle Computer Products, written by Tim Paterson. Development of 86DOS took only six weeks, as it was basically a. MSDOS, the acronym for Microsoft Disk Operating System, is an operating system with a commandline interface used on personal computers. PC DOS Personal Computer Disk Operating System was the first widely installed disk operating system used in personal computers running on Intel 8. It was developed for IBM by Microsoft Corporation, which also produced its own almost identical version called MS DOS. Other computers at the time, such as the Commodore 6. Atari 8. 00, and Apple II, all featured a disk operating system, CBM DOS, Atari DOS, and Apple DOS, respectively. DOS3. 60 was an operating system for IBM mainframes which first appeared in 1. DOS of the 1. 98. These early operating systems did not multitask, as they were only able to run one program at a time. The command line interface, in which a user has to type in commands, required the user to remember commands to run programs or do other operating system tasks, making it difficult for novices to use. For example, typing the command cd directoryname changed the current working directory to the named directory and typing the command dir listed the files in the current directory. When Microsoft first introduced Windows as a graphical user interface GUI for MS DOS, early users had to type WIN at the DOS prompt to launch the Windows program. Windows has since evolved from being a GUI program running under DOS to a full operating system taking over as the default OS, though it was not until Windows XP that consumer versions of Windows stopped relying on the DOS program win. Windows kernel. The last retail version of MS DOS was MS DOS 6. After this release, MS DOS was still bundled as part of Windows, but no longer required a separate license. It can still be run under Windows using the Command Prompt program. There is an open source version of DOS called Free. Free Online Video Cutter more. DOS which is based on and compatible with MS DOS. Note The acronym Do. S with a lowercase O is short for Denial of Service, a method of attacking a networked computer by sending it an abnormally high number of requests in order to exhaust its resources so that genuine users cannot gain access.