This was extended by Gates to MS-DOS to be used only by Microsoft. DOS: Disk Operating SystemĭOS was the computer operating system used in the early days of computing and was extended to PC-DOS by Bill Gates when Microsoft was asked by IBM to develop an operating system for the IBM personal computers.
Here is some information about the most common OS families in use today. There are many computer operating systems, or OS families, available throughout the world. The various OS systems available are known as “OS Families”.Īll your software or apps run on top of the computer operating system – without an OS your computer would do nothing. Each of these devices needs an ‘Operating System’ or OS to run it and control its overall functioning. You may have a computer, laptop or a mobile device such as a tablet or smartphone. Computer operating systems are essential for any computer to work.
