CMS : Examples of Open Source Software

Detailed  Explained -  Click Here. Now Explain About : Examples of Open Source Software.

1. Apache (Web Server) :

The Apache HTTP Server Project is an effort to develop and maintain an open-source HTTP server for modern operating systems. The goal of this project is to provide a secure, efficient and extensible server that provides HTTP services in sync with the current HTTP standards (Apache 2004). Apache is distributed under the Apache v2 license which is a permissive non-copyleft free software license with a few requirements that render it incompatible with the GPL license.

2. Compiere :

Compiere is an ERP+CRM solution for Small-Medium Enterprises in the global marketplace covering all areas from customer management, supply chain and accounting (Compiere 2004). Compiere is distributed under the Compiere License which is based on the Mozilla Public License (MPL) Version 1.1 and the Netscape Public License (NPL). The MPL license is not GPL compatible though version 1.1 has a provision (section 13) that allows a program (or parts of it) to offer a choice of another license as well. If part of a program allows the GNU GPL as an alternate choice, or any other GPL-compatible license as an alternate choice, that part of the program has a GPL-compatible license.

3. FreeBSD :

FreeBSD is an advanced operating system for x86 compatible, AMD64, Alpha, IA-64, PC-98 and UltraSPARC r architectures. It is derived from BSD, the version of UNIX r developed at the University of California, Berkeley (FreeBSD 2004). FreeBSD is distributed under the modified BSD license which is the original BSD license, modified by removal of the advertising clause. It is a simple, permissive non-copyleft free software license, compatible with the GPL license.

4. Linux :

Linux is a clone of the operating system Unix, written from scratch by Linus Torvalds with assistance from a loosely-knit team of hackers across the Net. It aims towards POSIX and Single UNIX Specification compliance (Linux 2004). Linux is distributed under the GPL v2 license which is a free software license, listed in appendix D.

5. Mozilla :

Mozilla is a project to continue Netscape Communicator as an open project. The project is maintained by employees of Netscape (now a division of AOL), RedHat, some other companies, as well as contributors from the community (MozillaFoundation 2004). Mozilla is distributed under the MPL v1.1 license.

6. Perl : 

Perl is a stable, cross platform programming language. It is used for mission critical projects in the public and private sectors (Perl 2004). Perl is distributed under dual-licenses, the Artistic and GPL licenses. The Artistic license is not a real open source license, though Perl is considered open source because it offers GPL as an alternative license.

7. PostgreSQL :

PostgreSQL is an enhancement of the POSTGRES database management system, a next-generation DataBase Management System (DBMS) research prototype. While PostgreSQL retains the powerful data model and rich data types of POSTGRES, it replaces the PostQuel query language with an extended subset of SQL (PostgreSQL 2004). PostgreSQL is distributed under the modified BSD license.

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