All about Operating Systems.

2. Operating Systems

3. Outlines
• Operating System
• Types of Operating System
• Device Dependent Program
• Device Independent Program
• Network Operating System/ Server Operating System

4. What is Operating System (OS)?
• An operating system (OS) is a set of
programs containing instructions that work
together to coordinate all the activities
among computer hardware resources.

5. Types of Operating Systems
• There are basically two Types:
1. Device Dependent Program
2. Device Independent Program

6. Device Dependent Program
• A device-dependent program is one that runs only
on a specific type of computer.
• Proprietary Software is privately owned and limited
to a specific vendor or computer model.
• Limitations of a software (such as most Linux, Mac,
and Windows programs) that prevent it from running
on more than one platform, or which requires a
specific hardware to perform its functions.

7. • A device-dependent software cannot easily be
moved from one type of computer to another, and
usually requires large-scale modifications or
rewriting of the original program.

8. Device Independent Programs
• Device-independent programs are those programs
that runs on computers provided by variety of
manufacturers.
• The trend today is towards device-independent
programs.
• The big advantage of device-independent operating
systems is you can retain existing application
software and data files even if you change computer
models or vendors.

9. Categories of Operating System
• The three basic categories that exist today are:
1. Stand-alone Operating Systems
2. Network Operating System (NOS)/ Server Operating
Systems
3. Embedded Operating Systems

10. Stand-alone Operating Systems
• A stand-alone operating system is a complete
operating system that works on a
desktop computer, notebook computer, or
mobile computing device.
• Some are client operating systems that work in
conjunction with a server operating system, with or
without a network.
• Examples of Stand-alone Operating systems are
Windows Vista, Mac OS X, UNIX and Linux.

11. Windows Vista

12. Mac OS X

13. UNIX

14. Linux

15. Network Operating System
• A network operating system/ server operating
system is an OS that is designed specifically to
support a network, and typically resides on a server.
• Network operating systems are designed specifically
to support all sizes of networks, including medium to
large-sized businesses and Web servers.
• Examples of Server Operating System are Windows
Server 2012 R2, Solaris and Novell NetWare.

16. Windows Server 2012 R2

17. Solaris

18. Novell NetWare

19. Embedded Operating Systems
• The operating system on mobile devices and many
consumer electronics, called an embedded operating
system.
• Examples of embedded operating system are
Windows Embedded CE, Windows Mobile, Palm OS,
iPhone OS, BlackBerry OS, Google Android and
Symbian OS.

20. Windows Embedded CE

21. Windows Mobile

22. Palm OS

23. iPhone OS

24. BlackBerry OS

25. Google Android

26. Symbian OS

27. Conclusion
• First of all we discussed about operating system and
then the types of operating system, device
dependent programs and device independent
programs.
• Then the basic categories of OS like stand-alone
operating system, network operating system/ server
operating system and embedded operating system.

28. Thank you for concentration… 
Prepared by: Muhammad Faizan Akhter
Allah Hafiz…