What does the computer answer for? Description of the main components of the PC

What does the computer answer for? What is needed for all its main components is the main theme of today's article. Computers have penetrated deeply into all spheres of human life. In this regard, an increasing number of people are interested in how the PC works. The functioning of modern electronic devices is too complicated a topic for its full description, however, general information is available to non-specialists.

CPU

The CPU is often called the brain of a PC. What does the processor in the computer answer? He performs most of the mathematical calculations, as well as controls all processes and operations. The processor is the most expensive part of the computer. The price of the "heaped up" and modern CPU can exceed the mark of 50,000 rubles. True, such devices are not needed for everyone.

Today in the market of processors for home computers are presented devices of two companies - Intel and AMD. It is believed that the "intellect" is less energy-intensive, which means that they do not require scrupulous selection of the cooling system. AMD is better suited for operations related to the processing of computer graphics. It's difficult to say which processors are better for a company, for this it is necessary to conduct a lot of tests among specific instances.

The main characteristic of the CPU is the number of cores and the frequency (measured in gigahertz). Also, professionals recommend paying attention to the amount of cache memory. The more it is, the better.

What is the motherboard for the computer responsible for?

The motherboard is the biggest element of any computer. It acts as a link between all devices. To connect the units on the motherboard there are many connectors and slots.

There are a lot of motherboard manufacturers. It is difficult to single out someone separately on the general background. The main characteristics of the component are socket (it affects the type of processors that can be installed in the PC), the number and type of connectors for RAM, form factor (or size).

What is the RAM in the computer responsible for?

RAM is a device that stores the data necessary for programs to work. It is volatile. That is, after turning off the PC all information from it is deleted. But do not worry about this. User data is entered into it only when processing is necessary.

Looks RAM modules as flat rectangular slats on which chips are soldered. The main characteristics of RAM - volume, timings, frequency. Timing is the time it takes to get, write, and other data operations in RAM. The frequency determines the number of possible memory accesses per second.

HDD and SSD

Answering the question: "What does the computer answer for?", You can not ignore the hard drive. It is used to store user files. It installs applications, downloads movies, installs the OS. This memory is nonvolatile, which means that after turning off the power, all the information remains on the disk.

Today such devices are divided into SSD and HDD. Use the name "hard drive" for the first - wrong. It is a solid state drive that records data with the help of transistors. Such devices work much faster and quieter than classic ones. They are also more energy efficient. It's worth mentioning that unlike SSD hard drives, they are less durable. After a certain number of rewriting cycles, the transistors stop working in the normal mode, and the device needs to be replaced.

Also to the disadvantages of SSD is the high cost. Usually a solid state drive is used in conjunction with a standard HDD. At first install a system and software to increase the speed of downloading applications. On the second, they store documents and files. The main characteristics of the drives - the volume, the speed of reading and writing.

Video card

Video adapter - the second most expensive device, and it can not be crossed off, describing what the computer is responsible for. It displays the image on a monitor or similar connected device (for example, a projector). It may already be embedded in the motherboard, but most users do not give preference to such solutions, because they almost always lose in performance to discrete cards.

The main characteristics of the video card - the frequency of the GPU, the frequency of GDDR memory, the width of the bus, the size. It should be said that it is necessary to pursue the parameters only if the computer is used for computer games, 3D modeling. With the playback of movies, surfing and most other everyday tasks will cope with any modern video adapter.

Sound card

Telling what the computer is responsible for, you can not do without information about the sound card. As the name suggests, the sound card is responsible for processing and outputting audio information to speakers or headphones. This component is built-in by default in any motherboard. And the built-in solutions are often not supplemented.

Discrete devices are indispensable only for those who are engaged in professional sound recording and mastering. Also, such a component is necessary for people who want to connect a computer to a multi-channel sound playback device, but do not have enough connectors on the motherboard.