OPERATING SYSTEM (OS)

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An operating system is the program that is loaded into the computer

coordinates all the activities among computer hardware devices.

• It controls the hardware in the computer , peripherals, manages memory and files.

It enables the user to communicate with the computer and other software

examples of operating system are Microsoft Windows, Macintosh OS X,Linux , Unix and also DOS

1. Starting a computer2. Providing a user interface The three types of user interface are

Command-Line, Menu-Driven and Graphical User Interface (GUI)

Functions Of Operating System

Command-Line Menu-Driven

GUI

3. Managing data and programs

4. Managing memory

5. Configuring Devices

1. What is definition of OS?2. List all the functions of OS.

EXERCISES