3. • Programme instructions which controls and manage the
Hardware components are called “Software”. Computer HW
depends on software instructions.
• Software can be categorized in to 2 sections
– System Software
– Application Software
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5. Operating system software controls the application software and
manages how the hardware devices work together.
Operating system software also supports a variety of useful features,
one of which is multitasking.
• Multitasking allows more than one piece of software to be used at a
time
• Examples
– Microsoft – Windows XP, 7, 8
– Linux
– Mac OS X
– UNIX
– Solaris
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6. • Utility software provides additional functionality to the operating
system. Utility software includes antivirus software, screen savers,
and anti-spam software.
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7. Application software is used to solve specific problems or perform
specific tasks.
• Examples
– Programming Languages
•
•
•
•
VB
C/C++
Java
Python
– Packages
•
•
•
•
•
Office Package
Accounting Package
Design Package
Communication software Packages
Multimedia Packages
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8. • Proprietary Software – Need to buy license and not available
for free
– Microsoft licensed Software
• Open Source – Absolutely free for use, modify and to
redistribute
– Ubuntu Linux, VLC player, Open office
• Freeware – can be freely download but can have some small
defects, Cannot modify.
– Games, bit torrent
• Shareware - can download and try shareware for free, but if
you use it, you are supposed to pay for it.
– Some Anti virus softwares
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9. Types
Examples
Word Processing
MS Word, Open Office Writer, Kingsoft Writer
Spreadsheets
MS Excel, Lotus 123, Corel calculate
Presentation
MS PowerPoint, Presenter, Adobe Flash
Video
Windows Media player, KM player, VLC player, GOM
player, Adobe premier
Audio
Windows Media player, Jet audio, audition, virtual DJ
System tools
CC Cleaner, Tune up Utilities, disk defragmenter,
Web Browsers
IE, Mozilla Firefox, Google Chrome, Netscape Navigator
Business & accounting
QuickBooks, MYOB, Sage, Microsoft Accounting
Graphic
Photoshop, Illustrator, Corel draw, GIMP
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