Operating System infromation

 Operating System

Operating system is a software that controls system’s hardware and interacts with user and application software.

In short, an operating system is computer’s chief control program.

Functions of Operating System

The operating system performs the following functions −

·        It offers a user interface.

·        Loads program into computer’s memory.

·        Coordinates how program works with hardware and other software.

·        Manages how information is stored and retrieved from the disk.

·        Saves contents of file on to disk.

·        Reads contents of file from disk to memory.

·        Sends document to the printer and activates the printer.

·        Provides resources that copy or move data from one document to another, or from one program to another.

·        Recognizes keystrokes or mouse clicks and displays characters or graphics on the screen.

 

 

WINDOS

A disk operating system (abbreviated DOS) is a computer operating system that resides on and can use a disk storage device, such as a hard disk drive, /Solid state Drive or optical disc. A disk operating system must provide a file system for organizing, reading, and writing files on the storage disk. 

Disk operating systems were available for mainframes, minicomputers, microprocessors and home computers and were usually loaded from the disks themselves as part of the boot process.

GUI: -

Graphical user interface (GUI), a computer program that enables a person to communicate with a computer through the use of symbols, visual metaphors, and pointing devices.