What is operating system?

Operating system is an interface between a computer user and computer hardware. Modern operating systems use a graphical user interface or GUI. A GUI lets you use your mouse to click icons, buttons, menus and displayed on the screen using a combination of graphics and text. Some popular operating systems include Linux, Windows, Mac OS and operating systems for mobile devices.

The Windows operating system created by Microsoft. There have been many different versions of Windows, but recent ones are Windows 10, Windows 8, Windows 7 and Windows Vista. Windows is most popular operating system in the world.

Mac OS is line of operating systems created by Apple. It comes loaded on all new Macintosh computers or Macs.

Linux is open-source operating systems, which these can be modified and distributed by anyone around the world. This is different from proprietary software like Windows. The advantages of Linux are that it is free and there are many different distributions.

Operating systems for mobile devices include Apple iOS and Google Android. iOS running on an iPad and iPhone. Mobile devices such as phones, tablet computers, and MP3 players are different from desktop and laptop computers.

An operating system is a software which performs all basic tasks like file management, memory management, process management, handling input and output, and controlling disk drives and printers.

Memory management is the functionality of an operating system which refers to management of primary memory or main Memory. Main memory provides a fast storage that can be accessed directly by the CPU.  Memory management keeps memory location, it is allocated to some process or. It checks how much memory is to be allocated to processes.

The OS decides which process gets the processor when how much time. This function is called processor management. A processor management keeps tracks of processor and status of process and allocates the processor to a process.

Device management communicates device communication via their respective drivers. Device management keeps tracks of all devices and allocates the device in the efficient way.

The data that we work with on computers is kept in a hierarchical file system in which directories have files and subdirectories beneath them. File management keeps track of information, location, uses, status and allocates the resources.

An operating system is a program that acts as an interface between the user and the computer hardware and controls the execution all programs.