Post on 17-May-2015
SOFTWAREComputer System
Software
System Software
Operating System
Utility
Application Software
Word Processing
Spreadsheet
Presentation
Graphic Editor
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 (Ms Word) Graphic Software (Adobe Photoshop)
SYSTEM SOFTWARE
OPERATING SYSTEM
LinuxMac OS X
UnixWindows VistaWindows XPWindows 7
UTILITY PROGRAM
Antivirus ( Karpersky)File Manager
Diagnostic UtilityScreen SaversBackup Utility
OPERATING SYSTEM (OS)SYSTEM SOFTWARE
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.
Function of OS :
1. Starting a computer (booting)2. Provide a user interface
Command line interface Menu driven interface Graphical user interface
3. Managing program4. Managing memory5. Configuring devices
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.
Command Line Interface
Menu Driven Interface
Graphical User Interface (GUI)
Different Interfaces of OSCommand 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
UTILITYSYSTEM SOFTWARE
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)
TYPE and USAGE of utility programUtility 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
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
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
APPLICATION SOFTWARECOMPUTER SYSTEM
What is Application Software?
Software that is used to help a user perform a task and solve a problem.
Type of Application Software
Type of software
Examples
Proprietary Open Source
Word processing
Microsoft Word, Corel Word Perfect, Easy Word, Celframe Word
Kword, OpenOffice Write, AbiWord
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
Type of Application Software
Type of software
Examples
Proprietary Open Source
Presentation
Microsoft PowerPoint, Corel Presentation, Easy Presentation, Celframe PowerPresentation
Kpresenter, OpenOffice Impress, Agnubis
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
Uses of Application SoftwareApplication Software
Function
Word Processing
e.g:
1. Microsoft Word
2. Corel Word Perfect
3. EasyWord4. Celframe
Word5. Kword6. OpenOffice
Write7. 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 document2. Defining the size of paper on which to print
and specifying the margin3. Changing the shape and size of characters4. Organizing text in newsletter-style columns5. Incorporating many types of graphical
images6. Spelling checker7. Macro8. Drawing table9. Mail merge
Uses of Application SoftwareApplication Software
Function
Spreadsheet
e.g:
1. Microsoft Excel
2. Corel Quattro Pro
3. Easy Spreadsheet
4. Celframe Spreadsheet
5. Kspread6. OpenOffice
Calc7. 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 worksheet2. Containing formulas3. Charts4. What-if analysis5. Make query
Uses of Application SoftwareApplication Software
Function
Presentation
e.g:
1. Microsoft PowerPoint
2. Corel Presentations
3. EasyPresentation
4. Celframe PowerPresentation
5. Kpresenter6. OpenOffice
Impress7. 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.