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1. bej Operating system. Functions and components of OS. Types of OS. Process and a program.

2. What is an peratin System (OS) An operating system (OS) is a collection of software computer resources that manages hardware and provides common services for computer programs. The operating s v stem is a vital component of the system software in a computer system. Application programs require an system to usually operating function. Operating System Hardware ( Keyboard j

3. Functions of OS a Providing a user interface Running applications Support for built in utility programs. Control to the computer hardware

4. n of OS Process Management Memory management I/O Device management Network management Network services User Interface

5. Type of OS › Single user, Single Task › Single user, Multi— tasking › Multi user, Multi— tasking.

6. Single user Single tasking This type of operating system only has to deal with one person at a time, running one user application at a time.t An example of a this kind of operating system would be found on a mobile phone. There can only be one user using the mobile and that person is only using one of its applications at a time.

7. i I I i— tas i Single User Multi— basking Single user multi— talking as allows user to perform one or more than one task at same time Commonly as are MS windows Apples macintosh Mac

8. E 2 MU T R U P( - Allows many different users to take advantage of the computer's resources simultaneously - Allows multiple users to access the computer system at the same time - Time Sharing system and Internet servers as the multi user systems

9. Featu of perati Syste Reliable. Operational at all times. Should coordinate and have good control of input and output operations and the devices on which they are performed.

10. Exam chic les of com use OS utin evices Computers Mobile phones televisions Video game ATM

11. Advantag of Easy to use User friendly Intermediate between all hardware's and software's of the system No need to know any technical languages Its the platform of all programs

12. i advantag If any problems affected in OS, you may lose all the contents which have been stored already Unwanted user can use your own system