Introduction to Operating System

Introduction to Operating System

An Operating System (OS) is a system software (Figure 5.1) that enables the hardware to communicate and operate with other software. It also acts as an interface between the user and the hardware and controls the overall execution of the computer.

Following are some of the important functions of an Operating System as discussed in the previous chapter:

·              Memory Management

·              Process Management

·              Device Management

·              File Management

·              Security Management

·              Control overall system performance

·              Error detecting aids

·              Coordination between other software and users

The most popular Operating System are as follows:

·              Windows Series - for desktop and

·              laptop computers.

·              Android - for smart phones.

·              iOS - for Apple phones, i-Pad and i - Po d .

·              Linux  -  Open  source  Operating System for desktop and server.