CPU, which is often called just "processor", is an abbreviation for Central Processing Unit. This is the core of each and every computer or hosting server, due to the fact that it executes all of the calculations and logical input/output functions. Though the performance of a website or an app relies on other things too, like the amount of physical memory or the online connectivity of the server, the pace at which a certain processor works determines how soon an app will be executed. Later-generation processors have multiple cores that can significantly boost their overall power and efficiency, because every single core can control numerous processes separately or several cores can take care of a single process which requires a sizeable computing power. Due to the fact that every core operates at a specific speed, this architecture can be viewed as a few separate processors cooperating.