What Does Ubuntu Mean?

Ubuntu is an open-source operating system (OS) based on the Debian GNU/Linux distribution.

Techopedia Explains Ubuntu

Ubuntu was first released in 2004. The project is sponored by Canonical Ltd., a U.K.-based company that generates revenue by selling support and services to complement Ubuntu. Canonical releases a new version of Ubuntu every six months and provides support in the form of patches and security releases for 18 months thereafter.