“Pourquoi nous avons besoin d'Open () et de clôture () dans OS” Réponses codées

Pourquoi nous avons besoin d'Open () et de clôture () dans OS

We need to have such functions because it creates a link between 
the operating system and the file function since a file needs to be
close after read the file to release the memory allocated by the program and file need to be close to avoid failure in executing the program.