The LXDE desktop on Lubuntu

LXDE

LXDE stands for “Lightweight X11 Desktop Environment” and lightweight it is, as LXDE manages to use fewer system resources than other desktop environments and still be full-featured, which makes it great for old or low-resource computers.

Unlike other tightly integrated desktops LXDE strives to be modular, so each component can be used independently with few dependencies.