GitHubSoftware development collaboration platformGitHub ( ) is a proprietary developer platform that allows developers to create, store, manage, and share their code. It uses Git to provide distributed version control, and GitHub itself provides access control, bug tracking, software feature requests, task management, continuous integration, and wikis for every project. GitHub, headquartered in San Francisco, is operated by Github, Inc., a subsidiary of Microsoft since 2018.
UbuntuLinux distribution developed by CanonicalLinux distributionUbuntu ( ) is a Linux distribution based on Debian and composed primarily of free and open-source software. Developed by the British company Canonical and a community of contributors under a meritocratic governance model, Ubuntu is released in multiple official editions: Desktop, Server, and Core for IoT and robotic devices.
UnlicenseThe Unlicense is a public domain equivalent license for software which provides a public domainwaiver with a fall-back public-domain-like license, similar to the CC Zero for cultural works. It includes language used in earlier software projects and has a focus on an anti-copyright message. License termsThe text of the Unlicense is as follows: This is free and unencumbered software released into the public domain.Notice and take downNotice and take down is a process operated by online hosts in response to court orders or allegations that content is illegal. Content is removed by the host following notice. Notice and take down is widely operated in relation to copyright infringement, as well as for libel and other illegal content.
Fork (software development)In software development, a fork is a codebase that is created by duplicating an existing codebase and, generally, is subsequently modified independently of the original. Softwarebuilt from a fork initially has identical behavior as software built from the original code, but as the source code is increasingly modified, the resulting software tends to have increasingly different behavior compared to the original.
LinuxFamily of Unix-like operating systems that use the Linux kernelOperating systemLinux ( ) is a family of free and open-source softwareUnix-like operating systems based on the Linux kernel, which was first released on 17 September 1991 by Linus Torvalds.
DownloadIn computer networks, download means to receivedata from a remote system, typically a server such as a web server, an FTP server, an email server, or other similar systems. This contrasts with uploading, where data is sent to a remote system. A download is a file offered for downloading or that has been downloaded, or the process of receiving such a file.
Free and open-source softwareFreely licensed software with open codeScreenshot of free and open-source software: Debian running KDE Plasma, Firefox, Dolphin, VLC, LibreOffice Writer, GIMP, and KCalcFree and open-source software (FOSS) is software available under a license that gives users the right to use, share, modify, and distribute the software — modified or not — to everyone and provides the means to exercise those rights using the software's source code.
Software licenseA software license is a legal instrument governing the use or redistribution of software. Since the 1970s, software copyright has been recognized in the United States. Despite the copyright being recognized, most companies prefer to sell licenses rather than copies of the software because it enables them to enforce stricter terms on redistribution.
YouTubeVideo-sharing platformYouTube is an American online video-sharing platform owned by Google. YouTube was founded on February 14, 2005, by Chad Hurley, Jawed Karim, and Steve Chen who were all former employees at PayPal. Headquartered in San Bruno, California, it is the second-most-visited website in the world, after Google itself.
MacOSmacOS (previously OS X and originally Mac OS X) is a proprietary Unix operating system, derived from OPENSTEP for Mach and FreeBSD, which has been marketed and developed by Apple since 2001. It is the current operating system for Apple's line of Mac computers. As of April 2026, within the market of desktop and laptop computers, it is the second most widely used desktop OS, after Microsoft Windows and ahead of all Linux distributions, including ChromeOS and SteamOS.
Fair useFair use is a doctrine in United States law that permits limited use of copyrighted material without permission from the copyright holder. Fair use is one of the limitations to copyright intended to balance the interests of copyright holders with the public interest in the wider distribution and use of creative works by allowing a defense to copyright infringement claims for certain limited uses that might otherwise be considered infringement.
Multithreading (computer architecture)Ability of a CPU to provide multiple threads of execution concurrently A process with two threads of execution, running on a single processor In computer architecture, multithreading is the ability of a central processing unit (CPU) (or a single core in a multi-core processor) to provide multiple threads of execution.*As an Amazon Associate I earn from qualifying purchases.