Overview of Disk Operating System
Disk operating system is one of the premier operating systems used in computer programming. The abbreviated form, DOS, is more popular among the computer users across the globe. The disk operating system is designed to offer all-round support to the secondary storage devices of computer system.
Functions of Disk Operating System
The main function of disk operating system is to coordinate the user and outside devices used in computer system. While operating a computer, user enters some commands. Disk operating system converts these commands into a version which is readable by computer memory. DOS also converts the error messages generated by computers into an understandable format.
If the disk operating system is loaded out of a disk and employed in supporting disk related devices of computer, then it takes control of the whole operating system. FreeDOS, DOS/360 are some of the examples of disk operating systems, which serve the purpose of the overall operating system.
How to Load Disk Operating System
To load disk operating system, your computer must be equipped with BOOT record. BOOT record enables read-only memory (ROM) to load the disk operating system. Once ROM starts running, it initiates Power On Self Test (POST) which keeps a watch on functioning of computer peripherals. At the end this process, ROM bootstrap starts reading the record of BOOT already stored in the computer system. Immediately after this, the loading process begins to operate. Once the loading is over the boot record gets ready to take the charge of entire computer system and disk operating system becomes active.
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