The document discusses different types of software, including system software and application software. System software includes operating systems and utility programs. Operating systems control and manage computer hardware and software. Common operating systems are Windows, Linux, and Mac OS. Utility programs allow users to perform maintenance tasks like file compression, antivirus scanning, and disk defragmentation. Application software helps users perform tasks and solve problems. Common applications include word processors, spreadsheets, and graphic editors.

1. SOFTWARE
Computer System

2. Software
System Software
Operating System
Utility
Application Software
Word Processing
Spreadsheet
Presentation
Graphic Editor

3.  System software :
 Software that is used to control and manage computer
devices and operations.
 Example :
 Operating system (OS) =Windows XP, Linux,Windows 7
 Utility Program =Antivirus (AVG, Karspersky)
 Application software:
 Software that is used to help a user perform a task and
solve a problem.
 Example :
 Word Processing (MsWord)
 Graphic Software (Adobe Photoshop)

5. SYSTEM
SOFTWARE
OPERATING SYSTEM
Linux
Mac OS X
Unix
WindowsVista
Windows XP
Windows 7
UTILITY PROGRAM
Antivirus ( Karpersky)
File Manager
Diagnostic Utility
Screen Savers
Backup Utility

6. OPERATING SYSTEM (OS)
SYSTEM SOFTWARE

7. What is OPERATING SYSTEM (OS)?
 An operating system is a program designed to
run other programs on a computer.A computer’s
operating system manage both software and
hardware resources.
 Operating systems are responsible for
everything from the control and allocation of
memory to recognizing input from external
devices and transmitting output to computer
displays.They also manage files on computer
hard drives and control peripherals, like printers
and scanners.

8. Function of OS :
1. Starting a computer (booting)
2. Provide a user interface
 Command line interface
 Menu driven interface
 Graphical user interface
3. Managing program
4. Managing memory
5. Configuring devices

9. User Interface
 We interact with software through its user
interface. User interface control how you enter
data and instruction and how information is
displayed on the screen.
Comman
Command Line Interface Menu Driven Interface Graphical User Interface
(GUI)
Type command or press
special key on the
keyboard to enter data
and instructions that
instruct the OS to do.
User do not need to memorize
keywords such as copy, paste
and syntax. On screen, menu
driven interface provide menu
as mean for entering command
User friendly.
GUI interact with visual
image such as button and
icon.

10. Command Line Interface

11. Menu Driven Interface

12. Graphical User Interface
(GUI)

13. Different Interfaces of OS
Command Line
Interface
(DOS)
User have to memorize all the
syntax to issue command
Difficult to use
Not user friendly
Take a long time to learn
Graphic User Interface
(Windows/ Linux)
User have not to memorize all
the syntax to issues command
Easy to use
User friendly
Take a short time to learn

15. UTILITY
SYSTEM SOFTWARE

16. What is Utility Program
 Utility Program, also known as service
programs, is a type of system software that
allow user to perform maintenance-type tasks.
 Usually related to manage a computer, its
device or program.
 Two type of Utility Program:
 Built in ( windows explorer, disk cleanup, disk
defragmenter)
 Stand-alone utility (winzip, norton utility, karpersky)

17. TYPE and USAGE of utility program
Utility
Program
Usage Example
File
Management
•Perform functions related to files
and disk management
•Eg : you can copy files and
programs from one disk to another.
You can move, rename or delete file
using this utility program.
Windows Explorer
Diagnostic
Utility
Diagnostic or troubleshooting utility
is a utility program that compiles
technical information and certain
system software programs and then
prepares a report outlining any
identified problems
Norton Utility

18. TYPE and USAGE of utility program
Utility
Program
Usage Example
File
Compression
•A file compression software is
system software that we use to shrink
the size of files so they require less
storage space and reduce
transmission time if we send them
over internet
WinZip
,WinRar, PKZip
Antivirus Antivirus is a program that protects a
computer against viruses by
indentifying and removing any
computer viruses found in a memory,
storage media or incoming files
Norton Antivirus, Kaspersky,
AntiVir,AVG, Nod32, Avast

19. TYPE and USAGE of utility program
Utility
Program
Usage Example
Defragmenter A program that reorganise files and
unused space on a computer hard
disk.
Eliminates fragmented files.
Fragmented file is a file allocated to
noncontiguous clusters. As you
create, edit, and delete files, more
and more of them become
fragmented
Norton Speed Disk, Disk
Defragmenter
Disk Scanner A utility that detect and corrects both
physical and logical problems on a
hard disk and searches for and
remove unnecessary software

20. APPLICATION SOFTWARE
COMPUTER SYSTEM

21. What is Application Software?
 Software that is used to help a user perform a task
and solve a problem.

22. Type of Application Software
Type of
software
Examples
Proprietary Open Source
Word
processing
MicrosoftWord, CorelWord
Perfect, EasyWord, Celframe
Word
Kword, OpenOfficeWrite,
AbiWord

23. Type of Application Software
Type of
software
Examples
Proprietary Open Source
Spreadsheet Microsoft Excel, Corel Quattro
Pro, Easy Spreadsheet, Celframe
Spreadsheet
Kspread,OpenOffice Calc,
GNumeric

24. Type of Application Software
Type of
software
Examples
Proprietary Open Source
Presentation Microsoft PowerPoint, Corel
Presentation, Easy Presentation,
Celframe PowerPresentation
Kpresenter,OpenOffice
Impress, Agnubis

25. Type of Application Software
Type of
software
Examples
Proprietary Open Source
Graphic
Editor
Adobe Photoshop,Adobe
Illustrator,Corel Draw, Jasc Paint
Shop Pro, Ulead Photoimpact
GIMP, Inkscape, PhotoScape,
Paint.Net, CinePaint

26. Uses of Application Software
Application
Software
Function
Word Processing
e.g:
1. Microsoft Word
2. CorelWord
Perfect
3. EasyWord
4. CelframeWord
5. Kword
6. OpenOfficeWrite
7. AbiWord
Word processing software allows users to create and
manipulate documents containing mostly text and
sometimes graphics
Word processing software can be used to produce
documents such as letters, memos, reports, fax cover,
sheet, mailing labels, news letters, and web pages.
Some features of word processing include:
1. Creating and editing document
2. Defining the size of paper on which to print and
specifying the margin
3. Changing the shape and size of characters
4. Organizing text in newsletter-style columns
5. Incorporating many types of graphical images
6. Spelling checker
7. Macro
8. Drawing table
9. Mail merge

27. Uses of Application Software
Application
Software
Function
Spreadsheet
e.g:
1. Microsoft Excel
2. Corel Quattro Pro
3. Easy Spreadsheet
4. Celframe
Spreadsheet
5. Kspread
6. OpenOfficeCalc
7. GNumeric
Spreadsheet software is an application that allows users
to organise and manipulate data in rows and columns.
Spreadsheet software that contains cells on which you
can insert formulae, labels and perform automatic
recalculations.
It produces worksheets that require repetitive
calculations – budgeting, maintaining a grade book,
balancing account, tracking investment, calculating loan
payments.
Features:
1. Creating, editing, formatting worksheet
2. Containing formulas
3. Charts
4. What-if analysis
5. Make query

28. Uses of Application Software
Application
Software
Function
Presentation
e.g:
1. Microsoft
PowerPoint
2. Corel
Presentations
3. EasyPresentation
4. Celframe
PowerPresentati
on
5. Kpresenter
6. OpenOffice
Impress
7. Agnubis
Presentation software is an application that allows users
to create visual aids for presentations to communicate
ideas, messages and other information to an audience.