Most Linux PC operating systems seem to be based on it, so it's worth starting with Ubuntu. Ubuntu is an operating system created by a worldwide team of expert developers. This fast operating system contains all the applications you need: a web browser, office suite, multimedia applications, instant messaging and much more. Ubuntu is an open source alternative for Windows and Office that can speed up your PC.
This operating system that is commonly used in old laptops was not exactly designed from scratch. Ubuntu is the distribution of Linux based on the Debian architecture. This ideal OS for an old laptop comes with most of the built-in Ubuntu applications (Firefox, Open Office, F-Spot, LibreOffice, Firefox, Thunderbird, Transmission, etc.) that make this configuration different from the compatibility with the hardware of the computer. The GUI is tailored to take advantage of the limited function of old-fashioned laptop screens. The Ubuntu platform comes in two forms: LTS (long-term support) and not LTS. The versions are marked as 16.04, the nomenclature is made with respect to the year (16) and the month (04) of the release.
The most notable thing is that the versions will no longer come with the Unity-based desktop, since the most recent versions will return to the GNOME-based desktop. Also, as Ubuntu has been the most popular Linux distribution, it has excellent hardware compatibility and users do not need to install additional drivers. The software can be downloaded from the official Ubuntu Software Center.
Download link: Ubuntu