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What CPU is it? Simply explained

  • Oct 18, 2025
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In the context of computers and processors is the abbreviation CPU is often seen. What is it exactly and what is behind it? CPU stands for "Central Processing Unit" and means translated as much as Central processor unit. For more on this topic, we will explain in this practical tip.

CPU - What is it?

The CPU is the main processor of a computer, and thus forms in addition to other processors, the core piece of a computer.

  • The CPU is located Inside of your computer. He is on a Pedestal on the motherboard or in a free Slot - a slot similar to the video card installed. In addition, a fan or cooling fan is needed to cool the processor. Because of the heated by elaborate computing tasks heavily and would switch off without cooling quickly. Another processor is the GPU - What is it?
  • The CPU is mainly concerned with computing and control, and has to this end a calculation and a control unit.
  • The calculator can calculate arithmetic in the binary system with 0 and 1. Through skillful coordination can be carried out in all kinds of operations, such as Addition or Division. The control unit in the CPU knows different commands with a command decoder for coordination. Thus, commands can be used by the operating system to the processor passed.
  • If you want to print for example a page, you first need to enter the command in the operating system. This converts the task into a calculation and returns it to the processor. After the invoice has been performed, a command is sent to the printer, and the result is forwarded.
  • The CPU usage you can see in the task Manager under "processes". Go to the task Manager in Windows by using the key combination [Ctrl] + [Alt] + [Del]. How to use the task Manager on a Macbook call, we will explain in a further article.
Windows CPU - What is it?

CPUs with different cores - What does that mean?

The CPU differs from machine to machine, and can be divided into different groups with nuclei. It is different to the CPU in addition to the efficiency.

  • The most popular names are here-core processors (Single-Core), Two core processors (Dual-Core) and Four-core processors (Quad-Core). The more cores a processor has, the more tasks it can do simultaneously. So he is automatically more powerful.
  • The efficiency is specified in Hz (Hertz), MHz (Megahertz) or GHz (Gigahertz). A Gigahertz processor can perform 1 billion operations per second. Actually 1 billion of electricity will be processed pulses per second in the CPU. Time-consuming computational tasks, such as Division of large Numbers, consume several thousand power pulses. Processors with a performance of several GHz of the Standard.
  • One of the leading processor manufacturers, AMD and Intel. Just Intel processors with the well-known names i3, i5, and i7 you will find in many computers.

In a further practical tip we will show you how to find out what CPU in your Computer is built in.

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