1.  RAJPAR 001

3.  Operating system.
 Functions and components of OS.
 Types of OS.
 Process and a program.

4.  An operating system
(OS) is a collection of
software that manages
computer hardware
resources and provides
common services for
computer programs. The
operating system is a
vital component of the
system software in a
computer system.
Application programs
usually require an
operating system to
function.

5.  Providing a user interface
 Running applications
 Support for built in utility
programs.
 Control to the computer
hardware

6.  Process Management
 Memory management
 I/O Device
management
 Network management
 Network services
 User Interface

7.  Single user, Single
Task
 Single user, Multi-
tasking
 Multi user, Multi-
tasking.

8.  Command line interface
 Graphical user interface

11. Single user multi-tasking os allows user to perform one or
more than one task at same time
Commonly os are
MS windows
Apples macintosh
Single User Multi-tasking

12.  Microsoft Windows:
 Windows is a series of operating systems
developed by Microsoft. Each version of Windows
includes a graphical user interface, with a desktop
that allows users to view files and folders in
windows. For the past two decades, Windows has
been the most widely used operating system for
personal computers PCs.

13.  MacOS X:
 OS X is version 10 of the Apple Macintosh
operating system. OS X was described by
Apple as its first “complete revision” of the
OS since the previous version is OS 9, with a
focus on modularity so that future changes
would be easier to incorporate.
 Written in c++ .c .objective -c

16.  This type of operating system only has to
deal with one person at a time, running one
user application at a time.
 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.

18.  Reliable.
 Operational at all times.
 Should coordinate and have good control of
input and output operations and the devices
on which they are performed.

19.  Computers
 Mobile phones
 3d televisions
 Video game
 ATM

20.  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

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