1. OPERATING SYSTEMS
 JANGID M.L.
Operating System . Jangid ML 1

2. DEFINITION
 An operating system, or OS, is a software
program that enables the computer hardware
to communicate and operate with the
computer software.
 sometimes called the platform,
coordinates all activities among computer
hardware resources
Operating System . Jangid ML 2

3. SYSTEM SOFTWARES
Systems Software: The programs that control the
operations of a computer . It consist -
 Operating system
 Linker
 Compiler
 Loader
 Driver etc.
Operating System . Jangid ML 3

4. OPERATING SYSTEM-1
 Character User Interface (CUI)
 DOS, Unix, Linux etc.
 Graphical User Interface (GUI)
 Windows-98/XP/Vista/7i , Linux
 Networking
 Windows Net, Sun Solaris
 Single Tasking :
 DOS
 Multi Tasking : An operating system that is capable
of allowing multiple software processes to run at
the same time.
 Windows, Linux
Operating System . Jangid ML 4

5. OPERATING SYSTEM-2
 Multi User: A multi-user operating system allows for
multiple users to use the same computer at the same
time and different times.
 Linux, Unix, windows 2000
 Multi-processing: An operating system capable of
supporting and utilizing more than one computer
processor
 Linux, Unix, Windows 2000
 Multi-treading : Operating systems that allow
different parts of a software program to run
concurrently.
 Linux,unix, Windows 2000
Operating System . Jangid ML 5

6. USER INTERFACE
User Interface : Controls how you communicate with the computer
1. With a Graphical User Interface 2. With a command-line
(GUI), a user interacts with icons interface, a user types all
and buttons commands.
Operating System . Jangid ML 6

7. BOOTING
Process Of Starting Or Re-starting of a Computer
 Cold Boot
Turning On Computer
That Has Been Powered
Off
 Warm Boot Restarting
Computer That Is
Powered On
Operating System . Jangid ML 7

8. Functions Of Operating Systems
1. Self Operated
2. Controlled By User
Operating System . Jangid ML 8

9. Functions Of Operating Systems
1. Start the computer 2. Provide a user interface 3. Manage programs
10.
Administer
security
4.
Manage
memory-
9. Control a
network
8. Provide file
management and 7. Monitor 6. Establish an 5. Schedule jobs and
other utilities performance Internet connection configure devices
Operating System . Jangid ML 9

10. FUNCTIONS BY OPERATOR
 File making
 Folder making
 Name of file / folder
 Copy, cut, paste, move etc.
 Rename, delete, restore etc.
 Formatting
 Defragment
 Scanning etc.
Operating System . Jangid ML 10

11. Operating System . Jangid ML 11