Debian is a general distribution of Linux. Every distribution has its own package management tools, set of default packages that are pre-installed, and may differ in what services are pre-installed and even what configuration files and such are used. Ubuntu is based on Debian.

What is the difference between Debian and GNU?

Debian GNU/Linux is a particular distribution of the Linux operating system, and numerous packages that run on it. Debian GNU/Linux is: full featured: Debian includes more than 58000 software packages at present. Users can select which packages to install; Debian provides a tool for this purpose.

Is Debian faster than Ubuntu?

Debian is a much lightweight system, which makes it super fast. As Debian comes bare minimum and is not bundled or prepacked with additional software and features, it makes it super fast and lightweight than Ubuntu. One important thing to note is that Ubuntu may be less stable than Debian.