Software distribution is the process of delivering software to the end user. This is not to be confused with a distribution, or distro, which is collection of software components built, assembled and configured so that it can be used essentially “as is” for its intended purpose. Software distribution is often the closest thing to turnkey form of free software. It may take the form of a binary distribution, with an executable installer which can be downloaded from the Internet. Examples range from whole operating system distributions to server and interpreter distributions (for example WAMP installers). Software distribution can also refer to careware 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.