Many amateurs make valuable contributions in the field of computer programming through the open source movement.

Category: Free and open source software organizations

* Adobe Source Libraries, a set of open source software libraries by Adobe

He is known for his analysis of complex proprietary protocols and algorithms, to allow compatible free and open source software implementations.

The Artistic License refers most commonly to the original Artistic License ( version 1. 0 ), a software license used for certain free and open source software packages, most notably the standard Perl implementation and most CPAN modules, which are dual-licensed under the Artistic License and the GNU General Public License ( GPL ).

However, this left undisturbed the finding that a free and open source license nonetheless has economic value.

* ABC ( Yet Another BitTorrent Client ), a free software, open source BitTorrent client based on BitTornado

* mpc-Musepack or MPC ( formerly known as MPEGplus, MPEG + or MP +) is an open source lossy audio codec, specifically optimized for transparent compression of stereo audio at bitrates of 160 – 180 kbit / s.

* ogg – a free, open source container format supporting a variety of formats, the most popular of which is the audio format Vorbis.

AbiWord had grammar checking before any other open source word processor, although a grammar checker was later added to OpenOffice. org.

Link Grammar is both a theory of syntax and an open source parser which is now developed by the AbiWord project.

ArgoUML is an UML diagramming application written in Java and released under the open source Eclipse Public License.

It is now an open source project hosted by Tigris. org.

* Alvyn Basic — An attempt to recreate an open source multiplatform BASIC interpreter, syntax-compatible with AMOS Professional.

InterBase 6. 0 was made available as an open source product in July 2000.

Borland stopped open source releases of InterBase and has developed and sold new versions at a fast pace.

Berkeley DB is redistributed under the Sleepycat Public License, which is an OSI-approved open source license as well as an FSF-approved free software licence.

The code quality and general utility along with the licensing terms have led to its use in a multitude of free and open source software.

Berkeley DB provides the underlying storage and retrieval system of several LDAP servers, database systems, and many other proprietary and free / open source applications.

* ARC-Advanced Resource Connector open source grid middleware introduced by NorduGrid, use BerkeleyDB in several services.

* Asterisk PBX-A free / open source PBX.

* Bitcoin-A distributed peer-to-peer open source digital currency.

* Bogofilter – A free / open source spam filter that saves its wordlists using Berkeley DB.

* Carbonado – An open source relational database access layer.

* Citadel – A free / open source groupware platform that keeps all of its data stores, including the message base, in Berkeley DB.

Free and open source software libraries have been created to support such features in a portable way, and are most notably found in the repositories of the Common-Lisp. net and Common Lisp Open Code Collection projects.

The FSF recommends using the term " free software " rather than " open source software " because, as they state in a paper on Free Software philosophy, the latter term and the associated marketing campaign focuses on the technical issues of software development, avoiding the issue of user freedoms.

Some free software advocates use the term Free and Open Source Software ( FOSS ) as an inclusive compromise, drawing on both philosophies to bring both free software advocates and open source software advocates together to work on projects with more cohesion.

Despite the fundamental philosophical differences between the free software movement and the open source movement, the official definitions of free software by the Free Software Foundation and of open source software by the Open Source Initiative basically refer to the same software licences, with a few minor exceptions.

Category: Free, open source strategy games

Category: Free, open source roguelikes

Category: Free and open source Android software

Free software and open-source are two similar categories of software licensing but which criteria of inclusion has open source including a few more licenses than is allowed under the free software definition.

Despite the fundamental philosophical differences between the free software movement and the open source movement, the official definitions of free software by the Free Software Foundation and of open source software by the Open Source Initiative basically refer to the same software licenses, with a few minor exceptions.

Although born from the same history of Unix, Internet free software, and the hacker culture as the free software movement launched by Richard Stallman and his Free Software Foundation, the Open Source Initiative was formed and chose the term open source, in Michael Tiemann's words, to " dump the moralizing and confrontational attitude that had been associated with ' free software ' in the past and sell the idea strictly on the same pragmatic, business-case grounds that had motivated Netscape.

Category: Free and open source software organizations

Free enterprise dominated the economy, export promotion was favored over import substitution, agriculture continued to dominate industry, and the economy remained generally open to international trade and market mechanisms.

In South Africa, springbok inhabit the vast grasslands of the Free State and the open shrublands of the greater and smaller Karoo.

* Free Tengwar Font Project, a project promoting free and open tengwar fonts mapped into Unicode private use code points

Vanuatu notably angered Indonesia by allowing the Free Papua Movement to open an office in Port-Vila.

Free open text by Sean Luke.

* Systems that operate on free and open source software systems including Linux are various, and include open-source programs such as the Festival Speech Synthesis System which uses diphone-based synthesis ( and can use a limited number of MBROLA voices ), and gnuspeech which uses articulatory synthesis from the Free Software Foundation.

The Open PINO Platform ( or just PINO ) is an open humanoid robot platform, with its mechanical and software design covered by the GNU Free Documentation License and GNU General Public License respectively.

Category: Free, open source puzzle games

Category: Free, open source roguelikes

Since 1967, Dial House has been an anarchist-pacifist open house, the base of operations for a number of cultural, artistic, and political projects ranging from avant-garde jazz events to helping found the Free Festival Movement.

The Free University open in the wake of the revolution of 1868.