Central Processing Unit, or CPU, is the main part of a computer that handles the majority of processing and computation functions. As it is in charge of carrying out commands and directing the operation of the other hardware parts, it is frequently referred to as the “brain” of the computer. A single chip or a number of chips mounted on a motherboard within the computer normally make up the CPU. Through a network of buses and controllers, it is linked to the computer’s memory, storage, and input/output devices, among other parts. A wide variety of instructions, including those that carry out arithmetic calculations, logical operations, input/output chores, and other duties, can be carried out by the CPU. The clock speed, or the number of instructions a CPU can process per second, and the number of cores, or the distinct processing units that make up the CPU, are often used to describe a CPU’s speed and performance.