Basic introduction to Operating Systems and their duties.

2.  Operating system is the layer which act
between hardware and user’s application
software.
 Operating systems allows us to use devices
such as computers & smart-phones without
worrying about the hardware.

3.  Microsoft Windows
 Ubuntu
 Android
 Mac OS
 Linux Mint
 Debian
 Fedora
 Cent-OS

5. OS
Command Line
(CLI)
Graphical User
Interface (GUI)

6.  Command-line operating systems don’t
contain an user interface to perform
operations.
 All actions must be entered using words
called commands.
 MS DOS & Linux are the most common
examples for this type of OS.

7. Free-DOS – Command Line Operating System

8. Linux – Command Line Operating System

9.  Operating Systems with GUI provides an easy
to use interface for the user.
 These type of operating systems mostly use
Windows, Icons, Menus & Pointers.
 This is called WIMP style or WIMP elements.
 Microsoft Windows and Ubuntu are the best
examples for GUI OS.

10. Ubuntu – Linux Based OS with Graphical User Interface

11. Manjaro Linux – Linux Based OS with Graphical User Interface

12. Windows OS

13. OS
Free
Ubuntu
Android
Paid
Microsoft
Windows
Mac OS

14.  These type of Operating Systems are free to
download & use for anyone.
 User doesn’t have to pay for a license or
activation.
 Mostly, these type of OS respects user’s
privacy.
 Ubuntu, Android & Linux Mint are the most
popular free to use operating systems.

15.  These types of OS are owned by a commercial
company.
 Users have to pay for a key or activation.
 Mostly, these type of OS doesn’t respect user’s
privacy.
 Microsoft Windows & Mac OS are the most
popular examples for this type.

16.  You must choose an OS suitable for your
needs.
 Your choice can effect how you work on the
devices you own.
 So, list your needs first. Then choose the
most suitable operating system FOR YOU.