CPU, that is frequently called just "processor", is an abbreviation for Central Processing Unit. This is the core of each and every laptop or computer or hosting server, as it carries out all of the calculations and logical input/output functions. Though the performance of a site or an app relies on other things as well, such as the amount of physical memory or the connection of the hosting server, the speed at which a specific processor performs determines how soon an app will be executed. Later-generation processors have numerous cores which can considerably boost their overall power and efficiency, because each core can control numerous processes individually or several cores can take on 1 process that needs a substantial computing power. Since each core functions at a specific speed, this architecture can be seen as a few independent processors working together.