As Per official site of Ubuntu
Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things
Ubuntu can use for :
1. Ubuntu on public clouds
Ubuntu is the world’s most popular cloud operating system across public clouds. Thanks to its security, versatility and policy of regular updates, Ubuntu is the leading cloud guest OS and the only free cloud operating system with the option of enterprise-grade commercial support.
2. Ubuntu Server
Ubuntu Server brings economic and technical scalability to your datacentre, public or private. Whether you want to deploy an OpenStack cloud, a Kubernetes cluster or a 50,000-node render farm, Ubuntu Server delivers the best value scale-out performance available
3. Ubuntu the for Containers
From Docker to Kubernetes, the experts choose Ubuntu for container operations. The single most important driver of quality, security and performance is the kernel version, and Canonical ensures that Ubuntu always has the very latest kernels with the latest security capabilities. That’s why the world’s biggest cloud operators and the world’s most sophisticated IT operations have chosen Ubuntu for containers.
4. Ubuntu for desktops
The open source Ubuntu desktop operating system powers millions of PCs and laptops around the world
5. Ubuntu for the Internet of Things
From smart homes to smart drones, robots, and industrial systems, Ubuntu is the new standard for embedded Linux. Get the world’s best security, a custom app store, a huge developer community and reliable updates.
As per Wikipedia
Ubuntu is a free and open-source Linux distribution based on Debian. Ubuntu is officially released in three editions: Desktop, Server, and Core (for internet of things devices and robots). All the editions can run on the computer alone, or in a virtual machine. Ubuntu is a popular operating system for cloud computing, with support for OpenStack.
Ubuntu is released every six months, with long-term support (LTS) releases every two years. The latest release is 19.10 (“Eoan Ermine”), and the most recent long-term support release is 18.04 LTS (“Bionic Beaver”), which is supported until 2023 under public support and until 2028 as a paid option.
Ubuntu is developed by Canonical, and a community of other developers, under a meritocratic governance model. Canonical provides security updates and support for each Ubuntu release, starting from the release date and until the release reaches its designated end-of-life (EOL) date. Canonical generates revenue through the sale of premium services related to Ubuntu.
Ubuntu is named after the African philosophy of ubuntu, which Canonical translates as “humanity to others” or “I am what I am because of who we all are”.
Ubuntu 19.10 “Eoan Ermine”
|Source model||Open-source, some proprietary drivers|
|Initial release||20 October 2004 (15 years ago)|
|Latest release||Ubuntu 19.10 / 17 October 2019 (2 months ago)|
|Marketing target||Cloud computing, IoT, personal computers, servers|
|Available in||More than 55 languages by LoCos|
|Update method||Software Updater|
|Package manager||GNOME Software, APT, dpkg, Snappy, flatpak|
|Platforms||IA-32, x86-64; ARMhf (ARMv7 + VFPv3-D16), ARM64; and only for servers: ppc64le (POWER8 and later), s390x|
|Kernel type||Linux kernel|
|Default user interface||GNOME|