write about any three operating system
Answers
input system, output system and integrated system
Hi,
The most popular and widely-known operating system is Windows, a family of operating systems introduced by the Microsoft Corporation in 1985. Windows employs a graphical user interface (GUI), which eliminates the need for the user to learn complex commands. With a GUI, the user instructs the operating system by using a mouse to point and click icons that are displayed on the screen. The first version of Windows, released in November 1985, was designed as a GUI add-on for MS-DOS (short for Microsoft Disk Operating System), Microsoft's original command-line operating system. In order to communicate with the computer, DOS users had to type commands or instructions at a command prompt, and then the command-line interpreter executed those commands.
Hope it helps..