A computer is packed with multiple functionalities and it runs with the help of multiple interconnected devices like Central processing Unit, Keyboard, RAM, ROM, disks & disk drives, monitor, printer and some software, all incorporated in one single machine. Operating system controls the information flow between these interconnected devices. Its primary job is to equip your hardware to have better understanding of the instructions of your software.

While buying the computer one needs to make sure that the design and architecture of the computer is compatible with the operating system. The files on your disks are managed by operating system. The OS also offer the multiple utilities like listing the directory of files on the disk, copying, deleting and renaming of the files as well as formatting the disk.