This document provides an overview of open source software (OSS). It discusses that OSS allows users to freely modify and redistribute source code. Common types of software licenses are described, including freeware, shareware, commercial, and open source. Key characteristics of OSS like Linux are outlined, such as the ability for programmers to read, modify, and redistribute source codes. Examples of popular Linux distributions and applications like OpenOffice, Firefox, Evolution, Pidgin, and GIMP are also mentioned.

1. IntroductionIntroduction
After seeing the pressure ofAfter seeing the pressure of licenselicense andand
proprietaryproprietary software users where a lot of moneysoftware users where a lot of money
is needed to make sure the software is in goodis needed to make sure the software is in good
condition, up to date and fulfils their need fromcondition, up to date and fulfils their need from
time to timetime to time
How the general idea come about…How the general idea come about…
OPEN SOURCEOPEN SOURCE
SOFTWARESOFTWARE
(OSS)(OSS)

2. OSS CharacteristicsOSS Characteristics
SoftwareSoftware can be upgradedcan be upgraded andand modifiedmodified
by userby user easilyeasily andand freelyfreely..
Programmers canProgrammers can readread,, redistributredistribute, ande, and
modifymodify the source codes.the source codes.
The software development will be speedThe software development will be speed
upup

3. Software CategoriesSoftware Categories
CostCost
FreewareFreeware (Internet Explorer, Linux)(Internet Explorer, Linux)
Shareware (WinZip)Shareware (WinZip)
Commercial (Word, Windows)Commercial (Word, Windows)
PrivatePrivate
Permission to modifyPermission to modify
Free/Free/Open Source SoftwareOpen Source Software (Linux)(Linux)
Proprietary (Internet Explorer, WinZip, Word)Proprietary (Internet Explorer, WinZip, Word)

4. FreewareFreeware vs.vs. OSSOSS
FreewareFreeware ::
 proprietary software given away without costproprietary software given away without cost
 does not provide any right to user to examine,does not provide any right to user to examine,
modify or redistribute the source codemodify or redistribute the source code
OSSOSS ::
 License give users the freedom to run theLicense give users the freedom to run the
program for any purposeprogram for any purpose
 Study and modify the programStudy and modify the program
 To redistribute copies of either the original orTo redistribute copies of either the original or
modified program (no royalty payment)modified program (no royalty payment)

5. The impact of OSSThe impact of OSS
 Within 5 years, 50% of the volume of the softwareWithin 5 years, 50% of the volume of the software
infrastructure market could be taken by OSSinfrastructure market could be taken by OSS
 OSS position in large server will growOSS position in large server will grow
 OSS reduce the dominance of Windows applicationOSS reduce the dominance of Windows application
 OSS will rapidly become the market leader in consumerOSS will rapidly become the market leader in consumer
computing devicescomputing devices
 OSS play a role as a significant player in market ofOSS play a role as a significant player in market of
consumer computing devices (eg: smart mobile phone)consumer computing devices (eg: smart mobile phone)
 Middleware will move gradually from proprietary productsMiddleware will move gradually from proprietary products
towards OSStowards OSS

6. BasedBased
OperatingOperating
SystemSystem

7. What it doesWhat it does
 Provides an open source (observable,Provides an open source (observable,
modifiable, redistributable)modifiable, redistributable)
 And low-cost (free)And low-cost (free)
 Alternative to proprietary operating systems (e.g.Alternative to proprietary operating systems (e.g.
Windows, Mac OS)Windows, Mac OS)
 Runs on many hardware platforms, fromRuns on many hardware platforms, from
conventional PCs to mobile phones to special-conventional PCs to mobile phones to special-
purpose boards for embedded systemspurpose boards for embedded systems

8. Linux DistributionLinux Distribution
Wikipedia lists around 160 differentWikipedia lists around 160 different
distributions of Linuxdistributions of Linux
(http://en.wikipedia.org/wiki/List_of_Linux_distributions)(http://en.wikipedia.org/wiki/List_of_Linux_distributions)
Wikipedia also provides a comparison ofWikipedia also provides a comparison of
different distributionsdifferent distributions
(http://en.wikipedia.org/wiki/Comparison_of_Linux_distributions)(http://en.wikipedia.org/wiki/Comparison_of_Linux_distributions)

9. SuSeSuSe
MandrivaMandriva
RedHatRedHat
Various Linux distributionsVarious Linux distributions
DebiaDebia
UbuntuUbuntu
FedoraFedora

11. Desktop SimplicityDesktop Simplicity
1.1. Default ApplicationDefault Application
2.2. OpenOfficeOpenOffice
3.3. Safe & easy web browsingSafe & easy web browsing
4.4. Personal Information ManagementPersonal Information Management
5.5. Music, video, pictures & their devicesMusic, video, pictures & their devices
6.6. Help & supportHelp & support

12. Linux Ubuntu desktopLinux Ubuntu desktop

13. 1) Application Menu1) Application Menu
 Ubuntu contains aUbuntu contains a
selection of usefulselection of useful
applications.applications.
 In theIn the ApplicationsApplications
menumenu you will findyou will find
OpenOffice 2.0OpenOffice 2.0 forfor
word processing,word processing,
spreadsheets andspreadsheets and
presentation, Gimp forpresentation, Gimp for
image editing and moreimage editing and more

14. 2) OpenOffice2) OpenOffice
 Word processor –Word processor – WriterWriter
 Spreadsheet –Spreadsheet – CalcCalc
 Presentation –Presentation – ImpressImpress
 Database –Database – BaseBase
A complete office suite for:A complete office suite for:

15. 3) Safe & Easy Web Browsing3) Safe & Easy Web Browsing
 Powerful andPowerful and
standard compliantstandard compliant
Mozilla FirefoxMozilla Firefox webweb
browser.browser.

16. 4) Personal Information4) Personal Information
ManagementManagement
 For integratedFor integrated emailemail,,
calendarcalendar and manyand many
more,more, EvolutionEvolution isis
therethere
 Simple check email,Simple check email,
create a calendar orcreate a calendar or
search for contactsearch for contact
 Able to connect to aAble to connect to a
Microsoft ExchangeMicrosoft Exchange
or other mail server.or other mail server.

17. 5) Help and Support5) Help and Support
 Documentation isDocumentation is
available in theavailable in the
desktop help browserdesktop help browser
and on-line help atand on-line help at
help.ubuntu.comhelp.ubuntu.com

18. 6) Plug & Play6) Plug & Play
 Music, video, pictures &Music, video, pictures &
devicesdevices
 Plug in camera andPlug in camera and
import pictureimport picture
 Organize & burn photoOrganize & burn photo
 Play, rip and mix yourPlay, rip and mix your
CDs with RhythmboxCDs with Rhythmbox
Media Player or playMedia Player or play
video on Totemvideo on Totem
 USB thumb drive pop inUSB thumb drive pop in
and drag, drop filesand drag, drop files

19. Pidgin instant messaging clientPidgin instant messaging client
 PidginPidgin (formerly known as Gaim), is(formerly known as Gaim), is
a multi-platform instant messaginga multi-platform instant messaging
client. The software supports manyclient. The software supports many
commonly used instant messagingcommonly used instant messaging
protocols, allowing the user to log intoprotocols, allowing the user to log into
various different services from onevarious different services from one
application.application.
 Gaim is a free and open sourceGaim is a free and open source
instant messaging client that can beinstant messaging client that can be
used to communicate with users ofused to communicate with users of
AOL,MSN, Yahoo, ICQ, Gadu GaduAOL,MSN, Yahoo, ICQ, Gadu Gadu
and Jabber instant messagingand Jabber instant messaging
networks simultaneously.networks simultaneously.
 Using gaim you can chat with all yourUsing gaim you can chat with all your
friends using one easy to usefriends using one easy to use
program.program.
http://www.pidgin.im/

20. GIMPGIMP (Gnu Image Manipulation Program)(Gnu Image Manipulation Program)
 GNU stands for "GNU's NotGNU stands for "GNU's Not
Unix“Unix“
 The GIMP lets you draw,The GIMP lets you draw,
paint, edit images, andpaint, edit images, and
much more.much more.
 The GIMP is installed inThe GIMP is installed in
Ubuntu by default, and canUbuntu by default, and can
be started by choosingbe started by choosing
Applications>Graphics>Applications>Graphics>
GIMP Image Editor .GIMP Image Editor .