1. Types of Software
Mrs. S. Palmer
Office Administration

2. System Software and Its Function
What is a software?
The instructions needed to direct the computer to
complete specific tasks.
- Software can be categorized into two types :-
Operating
Software
Application
Software

3. Operating Software/System Software
- program controlling the actual operations of the computer equipment
- the operating system tells the computer how to perform functions such as load, store, execute application program, transfer data between I/O ( Input/Output) devices and main memory
Application Software
- program that tells a computer how to produce information
examples of application software :
Business, scientific, educational programs and etc.

4. Purposes of OS :-
To manage the hardware for efficient utilization of computer resources
To interface between a user/an application program with the hardware

5. What an Operating System does?
Checks the functionality of the computer’s hardware. It generates an error message (by messages or beeps) if any components are found faulty.
Then the OS control programs will load the supervisor program into the computer’s memory – booting
3. Once the supervisor control program in memory, the system displays the prompt sign (C:\>), indicating that it is ready to work

6. TYPES OF OS Microsoft Windows (98, 2000, XP, Vista) Mac OS (X)
Linux OS
Unix OS etc.
MS-DOS

7. Exploring Popular Operating Systems: A Guided Tour
© 2005 Prentice-Hall, Inc.
Exploring Popular Operating Systems: A Guided Tour
MAC OS
WINDOWS XP
UNIX
LINUX
MS-DOS

8. Microsoft Windows Windows 2000 (2000) Windows XP (2001)
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Microsoft Windows
Windows version ( )
Windows 2000 (2000)
Windows XP (2001)
Windows 98 (1998)
Windows ME (2000)
Windows 3.x ( )
Windows 95 (1995)
Windows NT (1993)
Windows 2.0 (1987)
Windows 1.0 (1985)

9. Windows XP Released in 2001 by Microsoft XP is short for “experience”
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Windows XP
Released in 2001 by Microsoft
XP is short for “experience”
Uses the same underlying code for all versions
Replaces all previous versions of Windows
versions:
Windows 3.1, ’95, ‘98
Windows XP Home Edition
Windows XP Professional
Windows XP Server, New Technology (NT)

10. Windows NT Released in 1993 by Microsoft
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Windows NT
Released in 1993 by Microsoft
Designed for client/server systems
Two components:
Windows NT Workstation
Windows NT Server
Oriented to business needs
Offers security, remote administration, directory services, and a Web server
Example of multi user operating system

11. Windows CE Released in 1996 by Microsoft
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Windows CE
Released in 1996 by Microsoft
System used in PDAs or palmtops
Runs simplified versions of Windows programs
Data can be transferred to PCs
Includes handwriting and voice recognition
Example of multi user operating system

12. MAC OS Created in 1984 First OS to use graphical user interface
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MAC OS
Created in 1984
First OS to use graphical user interface
Easiest operating system for beginners
A new version, Mac OS X, was released in 2000
An example of multi user operating system

13. MS-DOS Developed for IBM PCs in 1981 Uses command-line interface
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MS-DOS
Developed for IBM PCs in 1981
Uses command-line interface
Use is diminishing
Example of single user operating system

14. UNIX Developed by AT&T in 1970s
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UNIX
Developed by AT&T in 1970s
Included first preemptive multitasking system
Developed concepts of file management and path names
Facilitates client/server networking
Widely used by corporations

15. Linux Developed in 1991 by UNIX
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Linux
Developed in 1991 by UNIX
Open-source code –Available for all to see and use
Competes with Windows and MAC-OS
Powerful and free
Growing acceptance

16. APPLICATION SOFTWARE
Is the name given to the programs that perform specific task. It is used in business, desktop publishing, education, graphics and designing.

17. Common Application Software
Word-Processing Programs
Used to enter, edit and format text, add graphics and print documents.

18. Common Application Software
Spreadsheet Programs
Used for creating tabular reports which allows user to organize, calculate and manipulate figures.

19. Common Application Software
Database Management Programs
Used to manage mailing lists, catalogues, inventories and personnel files.

20. Common Application Software
Presentation Programs
Used to create documents called slides that can be used to make presentations.

21. Common Application Software
Desktop Publishing Programs
Used for the design, layout and printing of books, flyers, magazines.

22. Common Application Software
Internet Browser
To access the Internet through a service provider.
Anti-virus
To scan files from the internet and attachments from for viruses

23. work Define the term Software Explain the following terms:
- software piracy
- graphical user interface
Clearly explain the difference between operating system software and application software.
Name three examples of operating system software
Indentify three types of applications software clearly stating the purpose of each.
Name three features of Windows 8