2

3

NO ALIEN LANGUAGE

4

OPERATING SYSTEM WARSBy

Flt Lt Kashif Shamaun

5

AIM

What all is happening in Operating System arena?

Do we have choice other than what we have?

What is good for us? Would adaptation to new technology be

possible?

6

SEQUENCE

Part I Understanding Operating System

Part II Brief history

Part III Comparison of operating systems

Conclusion Questions

7

Part I

UNDERSTANDING OPERATING SYSTEMS

8

WHAT IS OPERATING SYSTEM Set of programs containing instructions

that work together to coordinate all the activities among computer hardware resources.

The interface between the user and the computer hardware.

9

COMPUTER HIERARCHY

User Application

Operating system

Hardware

10

OPERATIONAL INTERACTION

11

OS Functions

Start &

Shut Down

Network

UpdatesUser Interface

SecurityProgramsMemoryFile ManagementInternet

Devices

Performance

12

HARDWARE USING OS

Main Frames

Servers

Microprocessors

Embedded Systems

Personal Computers

13

TYPES OF OS

Real-time operating system (RTOS) Single-user, single-tasking Single-user, multi-tasking Multi-user, multi-tasking

14

MAJOR PLAYERS

Operating System

Windows Mac Linux

15

Part II

BRIEF HISTORY

16

TIMELINE

1991 1992 1993 1994 1995

Windows NTLinux

Windows 95

17

TIMELINE

1996 1997 1998 1999 2000

Mac OS 7.6

Windows 98

Windows 2000

18

Mac OS 10.4

TIMELINE

2001 2002 2003 2004 2005

Mac OS 10

Windows XP

Windows XPSP I

Mac OS 10.3

Ubuntu

Windows XP

SP II

19

TIMELINE

2006 2007 2008 2009 2010

Mac OS 10.5

KubuntuWindows Vista

Windows server 2008

Windows 7

20

WINDOWS

Proprietary operating system Varity of platforms Significant Marketing research Windows XP Windows 7 a new promise

21

MAC

Partially proprietary Stunning Graphical User Interface (GUI) Linux based architecture Server edition

22

LINUX

C language based Unix like operating system Major share in servers The main flavors

23

Part III

SALIENT FEATURES COMPARISON

24

VIRUSES

Operating System

Number of Viruses

Windows 60,000Mac 70Linux 40

25

LINES OF CODE

Operating System

Lines of Code

Windows 89 millionMac 50 MillionLinux 40 Million

26

WINDOWS ADVANTAGE

Windows

Easy to use

Update

Supporting

Gaming

Familiar

27

WINDOWS DISADVANTAGES

Windows

expensive

Not secure

Not stable

28

MAC ADVANTAGES

Mac

Great GUI

Better to graphic

designerSecure

Stable

29

MAC DISADVANTAGES

Mac

Not gaming

Not all software

run

Difficult mouse

(one click)

Platform dependant

30

LINUX ADVANTAGES

Linux

Free

Stable

Secure

Source Code

Low pc requireme

nt

31

LINUX DISADVANTAGES

LinuxNot all

software run

Not support

Hard to learn, use and install

32

MARKET SHARE

Windows XP65%

Windows Vista 23%

Win-dows 7

4%

Win-dows 2000 1%

Mac 5% Linux

1%

Sun Solaris 1% Other

1%

33

WHAT TO CHOOSE

Cyber warfare secure (to some extent) Viruses Drivers Free Software GUI Backward Compatible Better & free support Over heads Power saver Ethically secure

34 CONCLUSION

35

WORD OF THOUGHT

“You can delay the technology but can not avoid it”

36