Software distribution is the process of delivering software to the end user. A distro is a collection of

software component Component-based software engineering (CBSE), also called component-based development (CBD), is a branch of software engineering that emphasizes the separation of concerns with respect to the wide-ranging functionality available throughout a give ...

s built, assembled and configured so that it can essentially be used "as is". It is often the closest thing to

turnkey A turnkey, a turnkey project, or a turnkey operation (also spelled turn-key) is a type of project that is constructed so that it can be sold to any buyer as a completed product. This is contrasted with build to order, where the constructor builds ...

form of

free software Free software or libre software is computer software distributed under terms that allow users to run the software for any purpose as well as to study, change, and distribute it and any adapted versions. Free software is a matter of liberty, n ...

. A distro may take the form of a ''binary distribution'', with an

executable In computing, executable code, an executable file, or an executable program, sometimes simply referred to as an executable or binary, causes a computer "to perform indicated tasks according to encoded instructions", as opposed to a data fil ...

installer which can be downloaded from the

Internet The Internet (or internet) is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a '' network of networks'' that consists of private, p ...

. Examples range from whole operating system distributions to

server Server may refer to: Computing *Server (computing), a computer program or a device that provides functionality for other programs or devices, called clients Role * Waiting staff, those who work at a restaurant or a bar attending customers and su ...

and interpreter distributions (for example

WAMP LAMP (Linux, Apache, MySQL, PHP/Perl/Python) is an acronym denoting one of the most common software stacks for many of the web's most popular applications. However, LAMP now refers to a generic software stack model and its components are largel ...

installers). ''Software distribution'' can also refer to

careware Careware (also called charityware, helpware, or goodware) is software licensed in a way that benefits a charity. Some careware is distributed free, and the author suggests that some payment be made to either a nominated charity, or a charity of t ...

and donateware. In recent years, the term has come to refer to nearly any "finished" software (i.e. something that is more or less ready for its intended use, whether as a complete system or a component of a larger system) that is assembled primarily from open source components.

Examples of distros

Examples of software distributions include BSD-based distros (such as

FreeBSD FreeBSD is a free and open-source Unix-like operating system descended from the Berkeley Software Distribution (BSD), which was based on Research Unix. The first version of FreeBSD was released in 1993. In 2005, FreeBSD was the most popular ...

NetBSD NetBSD is a free and open-source Unix operating system based on the Berkeley Software Distribution (BSD). It was the first open-source BSD descendant officially released after 386BSD was forked. It continues to be actively developed and is ava ...

OpenBSD OpenBSD is a security-focused, free and open-source, Unix-like operating system based on the Berkeley Software Distribution (BSD). Theo de Raadt created OpenBSD in 1995 by forking NetBSD 1.0. According to the website, the OpenBSD project e ...

, and DragonflyBSD) and Linux-based distros (such as

openSUSE openSUSE () is a free and open source RPM-based Linux distribution developed by the openSUSE project. The initial release of the community project was a beta version of SUSE Linux 10.0. Additionally the project creates a variety of tools, s ...

Ubuntu Ubuntu ( ) is a Linux distribution based on Debian and composed mostly of free and open-source software. Ubuntu is officially released in three editions: '' Desktop'', ''Server'', and ''Core'' for Internet of things devices and robots. All ...

, and

Fedora A fedora () is a hat with a soft brim and indented crown.Kilgour, Ruth Edwards (1958). ''A Pageant of Hats Ancient and Modern''. R. M. McBride Company. It is typically creased lengthwise down the crown and "pinched" near the front on both side ...

Distro support

Technical support is a key issue for end-users of distributions, since the distribution itself is typically free and may not be "owned" in a commercial sense by a vendor. Depending on the distribution, support may be provided by a commercial support vendor, the developers who created the distribution or by the user community itself.

Free software distribution tools

GNU Autotools are widely used for which consist of source files written in

C++ C++ (pronounced "C plus plus") is a high-level general-purpose programming language created by Danish computer scientist Bjarne Stroustrup as an extension of the C programming language, or "C with Classes". The language has expanded significan ...

and the

C programming language ''The C Programming Language'' (sometimes termed ''K&R'', after its authors' initials) is a computer programming book written by Brian Kernighan and Dennis Ritchie, the latter of whom originally designed and implemented the language, as well a ...

, but are not limited to these.

Commercial software distribution tools

LANDesk Ivanti () is an IT software company headquartered in South Jordan, Utah, United States. It produces software for IT Security, IT Service Management, IT Asset Management, Unified Endpoint Management, Identity Management and Supply Chain Manageme ...

Management Suite provides software distribution for Windows, OS X, and Linux. *

Dell KACE Quest KACE, formerly Dell KACE, is a company that specializes in computer appliances for systems management of information technology equipment. It also provides software for security, application virtualization, and systems management pro ...

provides remote administration, software distribution, and software installation to any Windows, Mac, or Linux desktop or server.

Distribution tools for mobile devices

Distribution of software to small

mobile devices A mobile device (or handheld computer) is a computer small enough to hold and operate in the hand. Mobile devices typically have a flat LCD or OLED screen, a touchscreen interface, and digital or physical buttons. They may also have a physical ...

such as phones, PDAs and other hand-held terminals is a particular challenge due to their inconsistent connection to the Internet. Some tools that cater to this category of devices are: * Sybase iAnywhere Afaria {{Software digital distribution platforms