To quote Wikipedia: Open Source Open-source software (OSS) is a type of computer software in which source code is released under a license in which the copyright holder grants users the rights to study, change, and distribute the software to anyone and for any purpose. In practice, this generally means software developed by hobbyists in their free time, as opposed to professionals at a company. But why should such software be preferable to commercial products? I shall ignore price, for the mo...