Ubuntu

Ubuntu is a free and open-source Linux distribution based on Debian. Ubuntu is officially released in three editions: Desktop, Server, and Core. Ubuntu is a popular operating system for cloud computing, with support for OpenStack. Ubuntu is released every six months, with long-term support releases every two years.
  • OS family: Linux
  • Package manager: GNOME Software, APT, dpkg, Snappy
  • License: Free software
  • Developer: Canonical Ltd.
  • Initial release date: October 20, 2004
  • Latest release: Ubuntu 18.10 / 18 October 2018
  • Platforms: IA-32, AMD64; ARMhf (ARMv7 + VFPv3-D16), ARM64; and only for servers: POWER8 (ppc64le), s390x
  • Programming languages: Python, Java, C, C++, C#
  • Kernel type: Monolithic
  • Marketing target: Cloud computing, IoT, personal computers, servers
  • Userland: GNU
  • Default user interface: GNOME
  • License: Free software
  • Official website: www.ubuntu.com

Long term support

LTS or ‘Long Term Support’ releases are published every two years in April. LTS releases are the ‘enterprise grade’ releases of Ubuntu, and they are much more heavily used (something like 95% of all Ubuntu installations are LTS releases).