Open source software

Open source software

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  OPEN SOURCE SOFTWARE By: ANKITROUT IT 3RD SEM sec-B ROLL NO. - 49 SUB-COIT presentation 1
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  CONTENTS WHAT IS OPENSOURCE ? CRITERIA FOR OPEN SOURCE HISTORY OF OPEN SOURCE OPEN SOURCEWORKING ADVANTAGES OF OPEN SOURCE SOME DISADVANTAGES OF OPEN SOURCE EXAMPLES OF OPEN SOURCE OPEN SOURCE OFFICE SOFTWARES LICENSE AND COPYRIGHTS CONCLUSION 2
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  WHAT IS OPENSOURCE ? oIn production and development, open source is a philosophy, or a methodology that promotes free redistribution and access to a products design or ideas and implementation details. open as in free open as in access open as in over time  open as in not closed  open as in reuse and change  open as in any place and for anyone 3
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  CRITERIA FOR OPENSOURCE Source Code  Derived Works  Free Redistribution Distribution of License Integrity ofThe Authors Source Code License Must Not Restrict Other Software  No Discrimination Against Persons or Groups No Discrimination Against Fields of Endeavor 4
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  HISTORY OF OPENSOURCE The concept of free sharing of technological information existed long before computers.  Similar to open standards, researchers with access to Advanced Research Projects Agency Network (ARPANET) used a process called Request for Comments to develop telecommunication network protocols which led to the birth of the INTERNET in 1969. The term Open Source was adopted by a group of people held at Palo Alto, California. "Open Source Summit" organized in April 1998 by technology publisher Tim O Reilly. 5
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   OPEN SOURCEWORKING 6
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  ADVANTAGES OF OPENSOURCE Availability of source code. Source code to understand and learn from.  Do not have to re-invent the wheel.  Free as in “freedom”.  Does not depend on vendor.  Can choose additional support. Can fix bugs and adapt to change in requirements as well as technology.  Quality and Customizability in open source is better.  Costs much less than proprietary counterparts. 7
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  SOME DISADVANTAGES OFOPEN SOURCE Not generally straightforward to use and requires a certain learning curve to use and get accustomed.  Incompatibility issue with software and hardware. (3rd party drivers)  Bad Codes, and some unqualified people who uses it.  Software quality assurance process is widely not transparent.  No financial incentive. 8
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  EXAMPLES OF OPENSOURCE Application software • 7-Zip • Eclipse • GIMP • Chromium • Blender • Mozilla Firefox Open OfficeOperating Systems: • Android • Linux • FreeBSD • React OS • Haiku • Free DOS Programming Language • Perl • PHP • Python • Ruby • PHDL • Prolog 9
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  OPEN SOURCE OFFICESOFTWARES Open Office : Apache Open Office is an open-source office productivity software suite with official website OpenOffice.org, launched in 2002 under the Apache License  LibreOffice : Developed byThe Document Foundation, it is licensed under the GNU Lesser General Public License (LGPL). It supportsWindows , Macintosh and GNU/Linux systems.  NeoOffice : Primarily designed for Mac users and is distributed under the GNU General Public License.  Koffice : It is a open source office suite licensed under the LGPL. 10
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  LICENSE AND COPYRIGHTS Thereare hundreds of different licenses.  Author chooses to license under a license granting open source freedoms.  Some licenses are more difficult to comply.  GNU GPL says that you can only use GPL code if modified/distributed code is also released under the GPL  “Copyleft” About 55% of these projects use a copyleft license. 11
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  LICENSE AND COPYRIGHTS oThe6 most common licenses cover about 90% of open source projects.  GNU General Public License (GPL)  GNU "Lesser" General Public License (LGPL)  Mozilla Public License 2.0 Eclipse Public License  Apache License 2.0  BSD License  MIT License 12
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  CONCLUSION Common platform forsharing ideas and putting them into action by developers or other people who wishes to improve a product/software.  We are in the Open Source Revolution where people collaborate to create, produce software or technology.  Based upon the key advantages of Open source technology , we can finally conclude that open source deserves the increasing popularity. GNU General Public License (GPL) -http://www.gnu.org  Open Source Licenses - http://opensource.org/licenses 13
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  THANK YOU 14