All of these devices have Linux installed.

We usually install the latest 64 Bit version or latest LTS version of Ubuntu, Mint, Elementary, Zorin or Debian.
LTS versions are installed and setup in OEM mode if the distro supports it so that you have full control and set up your own usernames and passwords. 
Although most or our products will already have one of the above Linux distributions installed, we are more than happy to install any Linux distro that you like onto any device! Just ask!