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SOFTWARE
Software is a series of instructions that tells a
computer…
SOFTWARE
Software is a series of instructions that tells a
computer what tasks to perform and how to
perform them
Proprietary software
– Software that are exclusive property of their
developers, and cannot be copied or distributed
without complying with their licensing
agreements.
Open-source software
– Software that is available free of charge with its
source code for modification and redistribution.
Types of software
Application software
– Programs designed to make users more
productive and assist them with personal tasks
Word Processing Software
• An application software that allows users to
create and manipulate documents containing
mostly text and sometimes graphics.
• Usage - to create letters, brochures, reports,
newsletters, or journals.
• Examples:
– Microsoft Word (Proprietary software)
– Writer (Open-source software)
Spreadsheet Software
• An application software that allows user to
organize data in rows and columns and to
perform calculations on the data.
• Usage - to create budget summaries, income
statements or calculate students marks.
• Examples:
– Microsoft Excel (Proprietary)
– Calc (Open source)
Database Software
• A software that allows user to create access
and manage a database.
– Database is a collection of data organized in a
manner that allows access, retrieval and use of
that data.
• Usage - to create student database,
employees database or book database.
• Examples:
– Microsoft Access (Proprietary)
– Base (Open source
Presentation Software
• An application software that allows users to
create visual aids for presentations to
communicate ideas, messages, and other
information to a group.
• Usage - to create a presentation for teaching,
marketing or tourist information.
• Examples:
– Microsoft PowerPoint (Proprietary)
– Impress (Open source
Web Browser
• A Web browser, or browser, is an application
software that allows users to access and view
Web pages.
• Examples:
– Internet Explorer (Proprietary)
– Firefox (Open source)
– Opera (Open source)
– Safari (Open source)
– Google Chrome (Open source)
Operating System
– A set of programs that coordinates all the
activities among computer hardware devices
Server OS
• An operating system that resides on a server,
designed specifically to support a network.
• Examples of server OS:
– Windows Server 2008
– UNIX
– Linux
– Solaris
– NetWare
Functions of Operating System
Start and shut down a computer
• Provide user interface
• Manage programs
• Manage memory
• Coordinate tasks
• Configure devices
• Establish internet connection
• Monitor performance
• Provide file management and other built-in
utilities
• Update software automatically
• Control a network
• Administer security
Mobile OS
• An operating system that resides on a ROM
chip for use on mobile devices such as
smartphones.
• Examples of mobile OS:
– Android
– iOS
– Windows embedded CE
– Windows Mobile
– Symbian OS
Stand-alone OS
• A complete operating system that works on a
desktop computer, notebook computer, or
mobile computing device.
• Examples of stand-alone OS:
– Windows
– Mac OS
– UNIX
– Linux
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Utility Program
– A program that performs a specific task related to
the management of computer functions and
resources
Compression Tools
• File compression is a utility program that
shrinks the size of files.
• Files are compressed to free up space on
storage media, or to attach in email.
• Compressed files sometimes are called zipped
files.
• Examples:
– WinZip, WinRAR, Pkzip
Antivirus Program
• Antivirus program is a utility program that
protects a computer against malware such as
virus, worm, and trojan horse.
• Examples:
– Avira Antivirus
– Kaspersky Antivirus
– BitDefender Antivirus
Disk Cleanup
• Disk cleanup is a utility program that searches
for and removes unnecessary files.
• Examples of unnecessary files are downloaded
program files, temporary Internet files,
deleted files, or unused program files.
• Examples:
– Windows Disk Cleanup
– Ccleaner
– Clean Master
Spyware and Adware remover
• Spyware/Adware remover is a utility program
that detects and deletes spyware/adware.
– Spyware is a program placed on a computer
without the user’s knowledge that secretly
collects information about the user.
– Adware is a software that displays unwanted ads
when a user is online, collects marketing data and
other information without the user's knowledge
• Examples:
– Spyware Doctor, Adware Docto
File Manager
• File manager is a utility program that performs
functions related to file management, such as:
– Displaying a list of files
– Organizing files in folders
– Copying, renaming, deleting, moving, and sorting
files and folders
– Creating shortcuts
• Windows Explorer is a file manager built-in
Windows OS
Disk Defragmenter
• Disk defragmenter is a utility program that
reorganizes files and unused space on a hard
disk so that OS access data more quickly and
program runs faster.
• Examples:
– Contig
– Defraggler
– MyDefrag
Backup and Restore
• A backup utility allows users to copy files to
another storage medium.
• A restore utility reverses the process and
returns backed up files to their original form.
• Examples:
– AMANDA
– BackupPC
– Bacula