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What is CPU Complete information about CPU | HARTRON EXAM

What is CPU Complete information about CPU

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What is CPU Complete information about CPU
What is CPU Complete information about CPU

Computers require different tools to do their work. It cannot do its work alone. Because, computer is not the name of any single machine. This is the name of a group of devices made up of many devices.

These important devices include another familiar name which is named – CPU. Whose name even an ordinary computer user knows.

Now the question may come in your mind that (what is this CPU)? How does CPU work? And what are the parts of CPU?

So do not worry, today you are going to get the answer of these questions. Because this article has been prepared to give these answers.

What is CPU – (What is CPU)

CPU is an important part of the computer which is also called processor, microprocessor and only CPU. The CPU handles the data and instructions received from all the hardware, software, users and input devices connected to the computer, and processes them and gives results. It also runs the operating system and other programs. This is the brain of the computer.

These computer parts are placed in the motherboard which can be seen under the CPU fan. Its other parts like ALU, Cache Memory, Registers and FPU are also inside this.

Usually due to lack of information, especially new computer users start thinking of CPU as a computer. But, this is wrong. CPU is a small essential part of the computer. (What is CPU)

CPU completes its work with the help of three auxiliary devices. Whose names are given below.

  • Memory
  • Control Unit
  • ALU

1 Memory

You can also think of memory as a computer warehouse or storage planet. Data is stored in this. CPU first stores the received instructions and data in its memory and then after processing the data again, stores it in memory itself. Which the user can use anytime.

For this task, the computer uses different memory. The memory in which Unprocessed Data (Input) is kept is called Primary Memory (RAM). And the memory in which Processed Data (Output) is sent is called Secondary Memory (ROM).

2 Control Unit


Control Unit, also known as CU, is the manager of the computer. Which controls all the operations.

Control Unit Memory, logical unit, tells input and output devices how to follow the instructions received from a program.

It receives instructions from memory and decodes it and sends it to the central processor. Then that particular event is processed. And this process goes on and on. (What is CPU)

3 ALU

The full name of this processor part ie ALU is Arithmetic Logical Unit. This unit performs only two functions. Perform mathematical operations on the first data. And second, giving results. ALU is the most complex and important part unit of CPU.

Arithmetic Logical Unit performs addition, subtraction, multiplication, division etc. in mathematical operations. And to give the decision, the data is matched, compared, sorted etc. Then comes to a decision. Which is called Output. After the completion of one task, this process is repeated again to do the other work.

What are CPU Cores

What are CPU Cores
What are CPU Cores


Each CPU is made up of at least one processor that does all the processing. For a long time, the CPU had to run from a single processor.

This processor itself is called processing core. (What is CPU)

Over time, advanced technology made a CPU capable of using a multicore (processor).

Today, a single CPU can consist of more than one processor. On the basis of the numbers of these processors, the naming of CPUs has started.

  • Dual-Core – The CPU which has two processors and is called dual-core processor. You must have heard the seller in the computer store saying that it is a dual-core processor. That’s what he was talking about then. Intel Pentium Dual Core Processors are processors in this category.
  • Quad-Core – The CPU that is made up of four processors is called a quad-core processor. Intel i5 processors are counted in quad-core processors.
  • Hexa-Core – Now you must have got an idea of ​​how many processors we are going to tell. You’ve got right six. The CPU which has six processors is called hexa-core processor. Some processors of Intel i5 and Intel i7 Processors are processors in this category.
  • Octa-Core – Having eight processors in a CPU makes it an octa-core processor. Processors after 9th Generation of Intel i7 Processors series are counted in this category.

Keep one thing in mind

Often people assume CPU and processor to be the same which is wrong. Basically the processor is present inside the CPU which is called the processing unit. This is also called the core. Multicores can be located inside a CPU.

What have you learned

In this article, we have provided you complete information about Computer CPU. You know what the CPU is, which processes the CPU completes to do its work. And what assistive devices do you use? (What is CPU)

We hope that you will like this article and prove useful for you. Share this article with your friends and comment for any question.

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