Welcome to Open Source Technology An Overview of Software By Afroz Hippargi, CIT, YASHADA, Pune

What is Open Source software ? What is Open Source software ? Open-source software is a computer software with its source code made available to study, modify, and distribute the software to anyone and for any purpose. it is software that is built and enhanced through public collaboration and therefore it is available free of charge

So what does that mean? “…software that is collectively developed by a community of technologists with an interest in a particular application or tool and then distributed at no cost to the broader community of individuals who can find a use for it…”

What is Open Source? Really? Free to read Free to use Free to modify Free to distribute

What are license The license provides the right to have the source code, change the source code, run and distribute the program. When you modifying open source software you must agree to provide others the same rights over the alterations you perform to the code.

What kind of license is needed BSD-style” licenses such as the MIT license - Allows almost any reuse of the code The GNU General Public License (GPL)- Allows reuse in open source s/w that is also under the GPL The GNU Lesser General Public License (LGPL) - allows reuse of library module in most type of code

Is Open Source software really free? Yes and No. S/W available under GPL generally qualifies both as free and open source s/w. Eg. Linux distribution, package manager satisfies both

Why doesn't everyone use Open Source software? Why doesn't everyone use Open Source software? People don't understand the concept or perceive it to be risky because they fear support is not reliable. The fact is that support for open source software is greatly affected by the community of users.

Examples of good Open Source software FireFox: a web browser OpenOffice: a full office suite Thuderbird: package SendMail: software Linux: a well known operating systems Apache: server software VNC: remote access software 7-Zip: file compression

What is the quality of Open Source software? What is the quality of Open Source software? Quality tends to be high in spite of the frequent releases. The large number of eyes in the community probably account for so many bugs being caught early on and addressed quickly. Commercial developers tend to try to hide their software shortcomings until a later date.

continue… In open source focus is brought upon the bugs to resolve them as there is no financial interest prompting anyone to hide such bugs, on the contrary, the community has a vested interest in having things fixed as soon as possible.

Open Source Technologies & Platform OS: GNU Project, Linux Programming Languages: Java, JavaScript, PHP, Python, Ruby Server: Apache Tomcat, JSP, Drupal

continue… Software: OpenOffice, Jaspersoft, 7-Zip Browsers: Mozilla Firefox, Chromium Database: MySQL, PostgreSQL

Types of software in Open Source Antivirus Software - Gateway Anti-Virus, Clam AntiVirus Computer-aided Design Software - Qcad, OpenStudio Content Management Systems - WordPress, Joomla, Drupal Database Management System - MySQL, PostgreSQL

continue… Learning Support Software - Moodle GIS Software - QGIS Office Suites - OpenOffice.org, NeoOffice Free file managers - 7-Zip Data compression software - 7-Zip, Rzip, Gzip Remote access and management - TIGHTVNC

Open Office Alternatives to Microsoft Office Can be used with Windows, Linux Leading open-source office software suite for: Word processing Spreadsheets Presentations Databases

Open Source for e-governance Why INDIA and States in INDIA should not adopt Open Source technology in its e-governance operations?

Open Source for teaching Why not INDIA and States in INDIA adopt these Open Source packages for its use and for teaching its students?

Advantage of Open Source Lower total cost of ownership Reduced dependence on software vendors Open source software gives you the power to control your software's code. You have the right to modify the code to suit your requirements and control the budgets that you want to spend towards it.

Disadvantage of Open Source Lines of code increase No guarantee of updates. You can get stuck with the same old version for years without ever getting an update.

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