Kiosk Mode is a feature of Google Chrome which enables the browser to run only in full screen mode, without any toolbars or address bars. Since version 18.0.1, a feature called Kiosk Printing has been introduced. This is a little trickier to set up, but it is a good solution if you wish to lock down your computer to ONLY run the module POS TPV Prestashop (enabling a kiosk mode shortcut from Program Files -> Start Up folder, for example).
Note that currently Kiosk printing requires Google Chrome 18.0.1 or higher. Which is available on the stable channel, so please ensure your version is up to date.