CPU, that's frequently called just "processor", is an abbreviation for Central Processing Unit. This is the core of each personal computer or server, as it executes each of the calculations and logical input/output operations. Though the performance of an Internet site or an app relies on other things also, such as the amount of physical memory or the connectivity of the hosting server, the speed at which a certain processor works determines how quick a program will be executed. Later-generation processors have several cores that can significantly increase their overall power and efficiency, due to the fact that each and every core can handle a number of processes separately or several cores can handle 1 process which requires a significant processing power. Due to the fact that each core functions at a specific speed, this architecture can be looked at as a number of individual processors working together.