CPU is the acronym in English for Central Processing Unit, The CPU is the brain of the computer, we refer to the part of the computer in which direct commands that generate the different functions of the CPU are controlled and originated. In the CPU all the calculations of the binary code of the computer are done. In general, it is the most important part of the system.

In the case of a simple desktop computer, they only need a printed circuit board. On this board is the chip called microprocessor that represents the heart of that CPU that calculates and determines the main functions of the computer (almost all). The CPU has 2 fundamental components: The logic/arithmetic unit (ALU) is the main calculator of the computer, it links the operations that are directly related to the binary code that is handled in the PC and the control unit (CU) it is the great memory manager and the components that add the functions, decrypt them and execute them.

The expression “central processing unit” is, loosely speaking, a description of a certain class of logic machines that can execute complex computer programs. This broad definition can easily be applied to many of the early computers that existed long before the term “CPU” was in wide use. However, the term itself and its acronym have been in use in the computer industry since at least the early 1960s. The form, design, and implementation of CPUs has changed dramatically since the earliest examples. , but its fundamental operation has remained fairly similar.