This document provides an overview of operating systems. It discusses the history of operating systems, including important operating systems from 2000 to 2014 like Windows Vista, Windows Server 2008, and Mac OS X 10.5. It also compares the salient features of common operating systems like Windows, Mac, and Linux in terms of viruses, lines of code, advantages, and disadvantages. The document serves to help understand what an operating system is, its operational interaction with computer hardware and applications, and types of operating systems like real-time and multi-user systems.

1.
OPERATING
SYSTEMS..
Presented by,
R.Mujeebabeham
Final year,CSE.

2. SEQUENCE:

UNDERSTANDING OPERATING SYSTEMS

HISTORY

SALIENT FEATURES COMPARISON

ADVADAGES AND DISADVANDAGES

3. I.UNDERSTANDING OPERATING SYSTEMS
1.what is o/s?
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.

4. 2.COMPUTER HIERARCHY:
User Applicati Operatin
on g system

5. 3.OPERATIONAL INTERACTION
O/S

6. 4.TYPES OF O/S:
•Real-time operating system (RTOS)
•Single-user, single-tasking
•Single-user, multi-tasking
•Multi-user, multi-tasking

7. II.HISTORY
1.Time Line chart
Windows
Mac OS 7
10.5
200 200 200 200 201 201
6 7 8 9 0 4
Windows Windows Kubunt
Vista server u
2008

8. 2.Most Common Operating Systems
LINUX
MAC

9. III.SALIENT FEATURES COMPARISON
1.VIRUSES
Operating Number of
System Viruses
windows 60,000
Mac 70
Linux 40

10. 2.LINES OF CODE:
Operating Lines of Code
System
Windows 89 million
Mac 50 Million
Linux 40 Million

11. IV.ADVANTAGES AND DISADVANDAGES
1.Windows Easy to use
Advandages:
Familiar Update
WINDOWS
Gaming Supporting

12. Windows Disadvandages
Expensive
WINDOWS
Not stable Not secure

13. MAC Advantages
Great GuI
secure stable
MAC
Better to
Graphic Designer

14. MAC Platform Disadvantages
Depentent
Difficult Not All S/W
Mouse Run
MAC
No Gaming

15. Linux Advantages
Free
Low PC
Stable
Requirement
Linux
Source code Secure

16. Linux Disadvandages
Not all
S/W Run
Linux
Hard to learn,
Not Support
Use & install

17. Operating System Evolution
•50s main frame era

60s microprocessor

80s game consoles

90s Personal Computers

2010 open source mobile OS

2020 online OS

18. THANK YOU...