In this article, we will look at what a CPU is, what functions it has and what it consists of.
Each computing device (PC, smartphone, camera) has a center that is responsible for the correct operation of the machine ― the processor.
In a broad sense, a processor is a device that performs computational and logical operations with data. Most often, this term is used to refer to the device's CPU. Decryption of the CPU-Central Processing Unit (central processing unit). This is the most important part of the computer. His brain. It looks like a square measuring approximately 5x5 cm:
On the back side of the CPU there are legs with which it is attached to the motherboard:
The speed of processing commands and the productivity of other components of the computer depends on the power of the central processor. For example, you can buy a modern video card, but it will not be able to show its capabilities if it is controlled by a weak CPU.
What functions does the CPU perform? The main function is to manage all computer operations: from the simplest addition of numbers on a calculator to running computer games. If we consider the main functions of the central processor in more detail, the CPU:
The central processor consists of 3 parts:
Each core can perform only one task, albeit in a fraction of a second. A single-core processor performs each task sequentially. For a modern volume of operations, this is not enough, so CPUs with more than one core are valued to perform several tasks simultaneously. For example, a dual-core performs two tasks simultaneously, a three ― core performs three, and so on.
The main characteristic of the processor is performance. It depends on two parameters: clock frequency and bit depth.
Clock frequency ― the number of operations performed per second. It is measured in megahertz (MHz — a million clock cycles per second ) and gigahertz (GHz — a billion clock cycles per second). The higher the clock frequency, the faster the machine runs.
Bit depth ― the amount of information (bytes) that can be transmitted per clock cycle. The processor's bit depth can be 8, 16, 32, 64 bits. Modern processors are 32-bit and 64-bit.
There are two main manufacturers of central processors on the market ― Intel and AMD.
Intel products are expensive, but they have high performance. They consume less energy, therefore they overheat less. They have a good connection with RAM.
AMD products are significantly behind Intel, but they are cheaper. They require a lot of energy and interact worse with RAM compared to Intel processors.