The document outlines the role and functions of an operating system, which acts as an interface between users and computer hardware, facilitating efficient program execution. Key functions include process, resource, file, communication, security, memory, and device management. It emphasizes the importance of the operating system in ensuring proper functioning and management of computer resources.

1. INTRODUCTION
SUBMITTED BY :
JAWERIA ZAKI
F23-BS-BBIT-1031
BBIT 3RD
SEMESTER (DOMS)
SUBMITTED TO :
SIR NAFEES AHMAD

2. Operating System & It’s
Functions

3. OPERATING SYSTEM
 System is a collection of programs which control the
overall functions of which control the overall functions of
computer.
 An operating system is a program that acts as an interface
between the user of a computer and the computer
hardware. The purpose of operating system is to provide
an environment in which a user can execute programs in a
efficient manner. Operating system also acts as a platform
on which various application programs such as word
processor and excel are executed.

4. OPERATING SYSTEM

5. Functions of Operating
System

6. Functions of operating System:-
 Process Management.
 Resource Management.
 File Management.
 Communication Management.
 Security Management.
 Memory Management.
 Device Controlling.

7. Functions of operating System:-

8. Process Management
 All process from start to shut down. Open,
Save, Install, Copy, Print.
 CPU can perform one task at one time. if
there are many tasks, operating system
decides which task should get the CPU.

9. Process Management
 All process from start to shut down. Open,
Save, Install, Copy, Print.
 CPU can perform one task at one time. if
there are many tasks, operating system
decides which task should get the CPU.

10. Resource Management
Installing drivers required for input,
communication output, memory,
power, communication devices.

11. File Management
 Name
 Folders.
 Location.
 Attributes – size, type, modified,
protection, password etc.

12. Communication Management.
Downloading-Uploading.
One computer to other computer
in One computer to other
computer in LAN/WAN.

13. Security Management.
 Virus management.
 Alert messages.
 Dialogue boxes.
 Firewall.
 Passwords./ Access protection

14. Memory Management
 It is also an important function of operating
system. The memory cannot be managed without
operating system. If there is no operating system,
the programs may mix with each other. The
system will not work properly.
 Primary RAM-ROM.
 Secondary – Hard Disc, CD, DVD, Pen Drive etc.

15. Device Controlling
Operating system also controls all
devices attached to computer. The
hardware devices are controlled with
the help of small software called
device drivers.

16. THANK YOU