Modifications

===Pull-up and Pull-down resistors===

[https://www.electronics-tutorials.ws/logic/pull-up-resistor.html Pull-up and Pull-down resistors] are used to correctly bias the inputs of digital gates to stop them from floating about randomly when there is no input condition.

==Synchronisation==

Il s'agit principalement d'une [https://fr.wikipedia.org/wiki/Synchronisation_de_fichiers synchronisation de fichiers] entre les appareils.