A good high-end gaming PC can be a big investment. It's not like the console market where everyone gets a standard build to run the same games. The right choice of gaming system for your individual needs requires more thought. The nice thing is that you yourself can control the assembly of parts and the quality of the final product. Before you make your final decision to buy a new gaming PC, consider the points below, just to make sure your investment pays off.

1. 1.

   What games do you play?

   The most important thing is to determine what kind of games you are going to play on your gaming PC. Even at a competitive level, strategists don't need a lot of power and graphics to showcase their expertise. On the other hand, modern first-person shooters require the highest quality equipment in order to successfully complete levels.

2. 2.

   CPU

   Once you figure out exactly how you'll be using your computer, you'll know which processor you need. If you are not a serious player, then a basic Intel processor core i5. However, if you really want to run the latest games on your computer, you will need a multi-core processor with a higher clock speed.

3. 3.

   Overclocking

   Some processors are made with overclocking capability. In other words, manufacturers often set processors to a lower frequency than they can actually run. You can also increase the speed to improve performance. But you have to be careful with this, if only because any damage caused by overclocking is likely not covered by your warranty.

4. 4.

   Cooling

   High performance computers generate a large number of heat, which can damage your system if not removed from it. This is especially problematic when you overclock your processor. You need a reliable cooling system. If you're a casual gamer, air fans will suffice, but if you take your system to the next level, you may need a liquid cooling system.

5. 5.

   video card

   Graphics are very important for games. There is a huge selection of graphics cards on the market, and for most games, a mid-range graphics card will suffice. If you need to run every game at maximum resolution across multiple displays, you'll need something more powerful.

6. 6.

   Multiple displays

   More and more games are starting to stretch across multiple displays. This means you can stretch your game across three monitors, which opens up the game world more than you can imagine.

7. 7.

   Memory

   At high performance, it may not be enough system memory, so determine how much memory will be enough for your needs. There are not many games that require more than 8 GB random access memory, but if you really want to get the unique pleasure of the game, then you need to upgrade the RAM to 16 GB.

8. 8.

   HDD

   If you are a serious gamer, then you can quickly run out of hard drive space. The latest trend among gamers is SSDs, which provide much better and more fast work user. During the game, it is not necessary to have access to the SSD, throughout the game it will make loading and saving much faster.

9. 9.

   Frame

   The right hull is about more than aesthetics. It should provide easy access to all internal components, be open to future upgrades, and help the air-cooling system protect all expensive parts from overheating.

10. 10.

    Peripherals

    While it is possible to play almost any game with a standard keyboard and mouse, there are a wide range of peripherals that are designed specifically to enhance the gaming experience. There are various mice different styles clutches and gaming keyboards have extended keys to make it easier to use certain functions in various games.

So before you go out and spend a lot of money on a new gaming PC, take these ten factors into account. It is well worth considering and studying everything in order to get gaming computer, which meets all your gaming requirements, which will give you the opportunity to improve your level and overall gaming experience.

Under lineup computer system usually understand not only the components of the basic PC configuration, but also the internal component system block, then most often they mean it when talking about a computer. But in this article both concepts will be considered.

Composition of a computer system

So, for example, several components can be distinguished in the minimum composition of a computer:

• System unit- it contains internal nodes personal computer;
• Monitor- allows data output: texts, images and other information;
• Keyboard- serves to enter information;
• Mouse- at least with its help you can control the work of computer programs.

Case of the system unit

The design of the hull determines not only appearance system unit, and with it home comfort and even its filling, namely the form factor of the motherboard, and with it the number of connected components. The cooling system is entirely dependent on the case of your computer, it must be quiet, but efficient.

System (motherboard) board

It is called both systemic and motherboard, the semantic load on these terms is exactly the same, when it is called one way or another, they mean the same thing. Thanks to system board mechanical fastening is provided directly and with the help of special cables of all components of the system unit, and with it their power supply and internal interconnection. Also on it are various controllers.

Processor and its cooling system

The microprocessor, which is part of the processor, performs most of the computational operations. Modern processors need good power consumption, and the temperature of some representatives even allows you to boil a kettle, so you can’t do without a cooling system:

Radiator - provides passive cooling to the processor, but one radiator can no longer cope with large heat dissipations and therefore a special fan is usually attached to it for air cooling. And in general, it will most likely not be possible to find a radiator separately from the fan.

There are alternative cooling systems, but they are usually required to use the overclocking potential of the CPU.

RAM module

Still, random access memory is called RAM - random access memory, is necessary for storing temporary data, a good example is the clipboard when copying and then pasting. The processor transfers information to RAM and takes it from there as needed. A feature of RAM is almost lightning speed, which makes it possible to exchange data with the processor at its own processing speed. It should be borne in mind that long-term data storage is practically unattainable, RAM is a volatile component of a personal computer, when the PC is turned off, all information will disappear forever.

There are several microcircuits working as a single unit on the module board, and no tools are required for installation in the motherboard, for increasing the RAM, this operation can be easily done by yourself.

Hard disk and solid state drive

Video adapter (Video card)

A video card is a graphics card, a device responsible for building (outputting) information on a monitor display. Modern motherboards already come with integrated graphics adapters that perform well both in office applications for viewing high-quality video and in non-resource-intensive games. For high-performance tasks, the video card is purchased separately, mounted on the motherboard, and a variety of models are in completely different price segments.

Optical disc drive

In the configuration of a modern computer, an optical drive is used less and less compared to its former popularity. Used to read and write discs of various formats. It connects to the motherboard using a cable, just like a hard drive or solid state drive.

Floppy disk drive and card reader

The floppy drive is no longer used to build modern computers, but it can still be found in older PCs. On older motherboards, a special connector was provided.

On modern computers it is more expedient to use a card reader that can read and write information from different types of flash drives.

Sound adapter, modem and LAN controller

The sound adapter is used to record and play sound, headphones, speakers and a microphone are connected to it.
A modem is needed to connect and access the Internet, a network controller or network card is used to connect to the network and, like a modem, to access the Internet.

As part of the motherboard of today, both a sound adapter and a network card are already built-in, but you can purchase them to expand the capabilities.

Modems, internal in the form of a board and external in the form of a peripheral device, although losing their popularity, are still used to connect to the Internet via a telephone line. More popular these days are 3G/4G modems using a mobile connection.

power unit

The name speaks for itself, its main function is to serve electric current all internal components of the computer system unit. Since the stability of the system depends on its power, you should treat the choice with understanding or even make its purchase with a small margin, which will come in handy with a further upgrade (modernization) of the components of the system unit.

The composition of the personal computer and the system unit is not limited to these components, the configuration can be expanded, or components can be replaced as necessary, and the line between understanding these terms has become a little clearer.

Publication date: 05/21/2009

Article for novice computer users who want to get to know him better. Useful when choosing a computer before buying it or assembling a custom configuration.

CPU the most important part of a computer is its brain and heart in one bottle. Today, in the processor market, the struggle is between two giants - AMD and Intel. Each of these firms has its supporters and opponents, advantages and disadvantages. But it is better to pay attention to the product itself, and not to the manufacturer.
There is an opinion that the higher the frequency, the higher the performance. This hasn't been the case for a long time. AMD processors, having a frequency lower than that of Intel, successfully compete with them. For example, the Athlon64 3000+ model is comparable to the Pentium 4 3000, although 3000+ is just a rating, the real frequency is 2000 MHz, that is, one third less than that of the competitor.
So, if you need a computer to work with video, then it is better to take Core2Duo or Core2Quad processors. They are suitable for games, + Athlon64 X2 and Phenom. To work with office applications or to save money, you can take Intel Celeron or AMD Sempron - budget options for older models.

Motherboard is the second most important part of the computer. It connects all its parts into a single whole, coordinates their work. If it fails, then, most likely, you will have to change the entire computer, because all components are connected to it, have “compatibility” with it, it is the link. And to find the same model after two or three years of using a computer is almost unrealistic - the process of updating models in the computer industry is proceeding rapidly and what was a novelty yesterday is already old today.
By manufacturers, maternal asus boards, Abit, MicroStar, Giga-Byte.
If you are not a specialist, the description or characteristics of the motherboard are unlikely to tell you anything, so you should pay attention only to the things built into it. If the built-in "sound" will satisfy the majority of buyers (but not those who will deal with music, for example, composers, DJs), then the built-in "video" is suitable only for office applications and very old games. 3D applications and new games are likely to have problems.
Not going to play fancy games and make 3D projects? The motherboard should not worry you at all. Any cheap one will do.

RAM(RAM) is an important condition for computer speed. It stores the data you are currently working with. When the computer is turned off or the operating system is restarted, this data is automatically erased. The more memory you have, the more data is processed per unit of time, the faster the computer works.
How much RAM do you need? If you are going to work with office applications, surf the Internet, listen to movies and music, then 512 megabytes will be enough for you. If you want to play modern games, work with video or graphics, you need at least 2 gigabytes of memory.
Important note! All of the above applies to operating Windows system XP and earlier Windows versions, as well as Mac OS operating systems (installed on Apple computers). If you have pre-installed on your computer (installed by the manufacturer or seller) Windows Vista, then the RAM must be at least 4 gigabytes! With less, Vista, itself actively using RAM for its system needs, is very slow. Keep that in mind!
HDD(HDD, hard drive) is the storage of your data. If you break any other part, then you will only lose money. In the event of a malfunction hard drive you will lose information that can be much more expensive than the entire computer.
However, as experience shows, well-known brands of hard drives can “cover themselves” just as easily and naturally as their lesser-known, but cheaper counterparts - a voltage drop, an evil virus, and now instead of the usual window you see black or black on the monitor. blue screen and none of your spells "well, dear, well, turn on!" for some reason they don't work. It is better to fight this misfortune with prevention and backup, which you can read about, for example, in, and not relying on a well-known brand of the manufacturer.
Therefore, the main question when choosing a hard drive: how much memory do you need. If you are into photography, movies or music, then you need to take HDD at least 320 GB. For reference: one DVD movie takes up 4.5 GB, an HDTV movie takes the same amount, a new game- 8 GB, average music collection - 20 GB. If you need a computer for working with documents and the Internet, storing movies of ordinary quality and a few games, then an 80 GB disk will be enough.
video card(video adapter) is a device that works with graphics. That is, everything that you see on the monitor screen is the result of the operation of the video card (it cannot be otherwise, because the monitor is connected to it). It depends on it how quickly and efficiently the image will be displayed.
If you are not going to play "fancy" games, then, frankly, any will suit you. So skip this step and move on to the next one.
If you are a fan of games, a fan of watching good quality movies on your computer, then I advise you to thoroughly understand the issue.
The video card built into the motherboard is suitable only for working with office applications, film music and the Internet, and simple games. On the games of the new generation is out of the question. Therefore, if you have money and you are going to play new toys, you need a separate video adapter on your computer.
Some mistakenly believe that the larger the volume of the video card, the better it is. In fact, the performance of the video adapter depends on its processor (not to be confused with the processor of the computer itself).
First, pay attention when choosing the bit width of the memory bus. It must be at least 128 bits. The number of bits affects the speed of the video card. For modern games, it is better to take a model with at least 256 bits.
You need to choose video adapters with a PCI-Express interface, AGP is already outdated, although they still hold some part of the market.
Next, you need to select the model of the video card and the manufacturer. Chipsets (chipsets) for video cards are produced by two giants: ATI - the Radeon series and Nvidia - the Geforce series. The struggle between them has been going on for many years and they are fighting on equal terms, so it is impossible to advise any one company, it's all about your personal preferences.
Nvidia Geforce video cards have a slightly higher price and performance. ATI Radeon video cards demonstrate good performance at fairly low prices. If you play games or work with graphics, then it is better to take ATI Radeon 3870 or higher or Nvidia Geforce 9600GT or higher.
ATI and Nvidia manufacture only chipsets, while video cards themselves are manufactured by other companies: Giga-Byte, ASUS, PalitDaytona, Sparkle, Sapphire. But here the brand of the manufacturer is almost irrelevant.

Sound card. If you are not a composer or DJ for whom sound is a profession, then any sound card even the cheapest one. Honestly!

DrivesCD andDVD discs. On modern computers, it seems, even on the cheapest ones, there are combo drives "by default" that allow you to read and write all CD and DVD formats (with the exception of Blu-Ray, which is discussed below). Therefore, this section is needed more for expanding your horizons than for practice.
There are the following types of drives: CD-ROM, DVD-ROM, CD-RW, DVD-RW, Blu-Ray. CD- and DVD-ROM can only read information from discs, CD- and DVD-RW can write discs in addition to reading, and combo combines all four types. You can not only watch DVD movies, listen to music from CDs, but also record necessary information for any blanks. By the way, almost all modern combo drives now support burning dual-layer DVDs, that is, you can burn 8.6 GB of information on one disc.
blu-ray- These are new generation drives that allow you to read discs with a capacity of up to 54 GB. Since their introduction, the price of new models has dropped significantly, so if you can afford, then feel free to buy Blu-Ray.

Computer case. Some believe that only the appearance, that is, the design, depends on it. Today, a variety of “fancy” cases have appeared on sale - convex, multi-colored, and of other non-standard shapes. In fact, the case is quite an important thing and it can become ... the cause of your computer's breakdown. The breakdown is not very serious, but if you are not an expert, it can plunge you into some shock. When the computer "died", that is, "completely died" - does not show any signs of life, does not buzz, does not burn with its bulbs and backlights - the problem is in the case, or rather, in the power supply built into it, which failed and the computer simply does not receive electricity, without which it is an ordinary piece of iron.
power unit supplies energy to all parts of the computer, so the stability of work depends on its quality. Poor quality power will shorten the life of all other devices and, moreover, may lead to their failure. For a new mid-range computer, the power supply must be at least 450 watts (W). The more watts the better. Very good power supplies are made by FSP Group and Inwin (the latter, by the way, produces not only power supplies, but also computer cases themselves).
There are the following types of cases:

• MiniTower - a very compact computer case, but not able to fit all modern components.
• MidiTower - the standard, most common case, suitable for any office and home computers.
• BigTower is a large and spacious case for servers and complex computing. If your work is related to coding and video processing or graphics, then you can take it - you can achieve very high performance.

The main companies producing computer cases, in descending order of price / quality:

• Thermaltake are the best but most expensive cases.
• Chieftec, Supermicro - cheaper than Thermaltake, but the quality is also on the level.
• 3R System - slightly cheaper than the above manufacturers
• Inwin - manufactures high-quality cases and power supplies. Possibly the best inexpensive.
• Cooler Master - cases with a good cooling system and "ventilation". Recommended for fans of "overclocking" (computer updates to improve its performance). Many models have mounts for installing water cooling.
• Asus, Elan Vital, Acer Open are good mid-range cases.
• Codegen, JNC, PowerMan, GeoIT, Genius - make good cases, which can not be said about power supplies.
• Microtech, LinkWorld, Rolsen are the most budget options. If your money is not "completely short", then it is better to climb a line or two higher.

I strongly do not recommend taking various non-standard cases - horizontal or ultra-compact, which are now so carried away by many well-known manufacturers, for example, Sony. They almost completely exclude the possibility of an upgrade (update), and also make it very difficult to repair a computer. If you change, for example, a hard drive or a video card in a conventional case, you can even do it yourself (we unscrew two bolts, remove one part from the connector and insert another), then in different compact versions, to replace a part, you often have to disassemble everything in general, and this is difficult even for specialists. In addition, such cases cool worse, which means that if you have a powerful processor, overheating cannot be avoided, with all the sad consequences that follow from this.

Monitor is a really important thing. From the point of view of your health - the most important, since from the right choice monitor depends not only on the quality of the picture, but your health and performance. good monitor does not strain your eyes and does not cause fatigue during long-term work. Let's make a reservation: hereinafter we are talking only about LCD (LCD) monitors, since CRT (CRT) are already outdated and you are unlikely to find them in stores. Moreover, the difference between average models of LCD and CRT monitors is about 2000 rubles, but LCD is much better and safer.
When choosing an LCD monitor, you need to pay attention to the following parameters:

• Format. There are two monitor formats: aspect ratio 4:3 (normal) and 16:10 (wide). Which one is better is up to you. Wide monitors are more comfortable for watching movies and some, like me, seem more comfortable to work with. the eyes will only orient in two directions. In my opinion, the future belongs to widescreen monitors.
• Diagonal. For home computer The best solution would be a monitor with a diagonal of 17", a maximum of 19" (inches). Huge monitors, of which there are so many on sale today, will certainly impress your guests, but sitting in front of them is not very convenient and useful - this is not a TV that is watched from a distance of 2-3 meters.
• Matrix response time. The lower this value, the better (should be less than 25 ms). On modern monitors, it can reach 2 milliseconds.
• Viewing angle. This parameter must be at least 160 degrees vertically and horizontally. On some expensive LCD monitors, it can be 178 degrees.
• contrast and brightness. Contrast should be at least 350:1, brightness at least 240 cd/square meter. The higher these parameters, the better the saturation and detail of the picture.

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The modern world is so mobile that a computer is absolutely indispensable. An electronic computer has appeared in various fields of human activity, therefore, for full-fledged work, you need to competently approach the choice of this device.

Personal computer device

To understand what a computer consists of, you need to look at the standard set of devices. However, it is worth distinguishing several types of electronic computers:

So, the main components of the architecture of a personal computer are the processor, internal memory, video system, input-output devices. It must be recalled that this characteristic applies to stationary machines. More specifically, the following components can be distinguished:

• monitor (display, screen);
• system unit;
• keyboard;
• manipulators:
  • mouse,
  • joystick,
  • trackball;
• I/O devices:
  • scanner;
  • Webcam;
  • tablet;
  • microphone;
  • Printer;
  • acoustic system.

Of course, the monitor, keyboard and manipulators are included in the category of input-output devices, but they are distinguished as the main parts of a computer, because no stationary computer can do without them.

System unit

To understand what the system unit of a computer consists of, you need to clarify that it contains all the electronic stuffing of the computer:

• motherboard;
• disk drives;
• hard drives;
• adapters and controllers;
• power unit.

There are also such types of drives and hard drives:

• floppy disk drives;
• drives on hard drives (non-removable hard drives);
• removable hard drives;
• optical disk drives;
• flash drives.

What do you need to "build" your computer?

If you want to “create” your own computer yourself, you need to know how to assemble the system unit in the first place. First you need to determine what type of device the “created” machine will belong to: a budget option, a productive one, or an advanced one. The first category includes a computer that will perform all the tasks of a novice user: watching videos, playing games, browsing the Internet and office programs. The second point includes models that are able to perform the same tasks, but with greater performance. Naturally, such a PC can be improved for the time being, since the main components will become obsolete and will be replaced by new ones. The third category includes machines that are particularly powerful. The disadvantage of such computers is their high cost.

Motherboard

The motherboard is the main component of the computer, since the rest of the computer is connected to it. When choosing a motherboard, you need to pay maximum attention, since the performance of the system and the possibility of improving it depend on it. The motherboard can be considered as a "collection" of devices, such as:

• CPU;
• memory;
• mathematical processor;
• expansion slots;
• chipset.

Usually on this component of the computer you can find built-in elements, for example, a network, sound and video card. This situation should not cause any concern, because at any moment you can replace the integrated device with an external one. After all, when assembling a computer, you need to take into account what the computer consists of, since each type of it needs different parts. In some cases, the use of integrated elements is unacceptable. The manufacturer cannot foresee what one user needs in terms of performance, and what another. Therefore, motherboards are equipped with special expansion slots, thanks to which it becomes possible to improve the computer.

CPU

The processor is understood as the main device of the computer, which controls the operation of all components of the machine and processes all incoming information. The main characteristics and components of the CPU are:

Processor bit depth refers to the amount of information that the CPU can process in one clock cycle. Today, most computers are equipped with processors that handle 64 bits, although 32-bit instances are also found. Cache memory is a kind of buffer for temporary storage of data that may be needed at any time by the processor. The CPU accesses such information much faster than information from internal memory. The system bus is responsible for combining the processor and RAM. Modern CPUs operate at a frequency that exceeds the performance of this board. The difference between the frequency of the processor and the system bus is called the multiplier. The larger the multiplier, the greater the ability to overclock the CPU.

RAM

The main purpose of RAM is the ability to temporarily store information and support executable software. Another name for this device is RAM (Random Access Memory). So, RAM is also included in the list of what a computer consists of, and these components must be mandatory. Information from RAM is erased when the power is turned off or rebooted. RAM refers to dynamic RAM, referred to as DRAM. Today, DDR2 memory is the most popular, but soon its niche will be taken by DDR3, which is characterized by especially high bandwidth and low power consumption. However, its disadvantage can be called a fabulous price. Experienced users recommend purchasing a motherboard with DDR3 support so that in the future it will be possible to install this type of memory in the slot, although DDR2 does not differ much in performance from its descendant. It is also worth paying attention to the number of slots for RAM: there should be at least 4 of them. This arrangement of things will make it more expedient to increase the internal memory indicator. Today, for the normal operation of a computer, 2 GB is already required, and in the near future, all 4 GB may be needed.

HDD

The hard drive, known as HDD, hard drive and screw, is an indispensable computer device that is necessary for the permanent storage of numerous information. When the power is turned off, the information will not disappear anywhere. A hard drive is both an electronic and a mechanical device that is subject to wear and tear on some parts.

To connect an HDD, one of three interfaces may be required:

All three varieties are still in use, although the first two types were developed back in 1986. If bought new hard disk and is already connected to the computer, it needs to be divided into several logical partitions. There are several programs that will help to cope with the task. Their main functions include:

• creating a new disk;
• deleting a section;
• dimension change;
• formatting, etc.

video card

A special device of a personal computer that displays an image on a monitor is called a video card. We can say that it is the most important component. Other names for a video card: video card, video adapter, graphics adapter.

The main parts of the device are:

• video memory;
• video processor;
• digital-to-analog converter;
• video card BIOS.

Graphics adapters are divided into two types:

The first type is built into the motherboard. In the event of a breakdown, it cannot be replaced by another integrated part. However, you can use an external video card, which is also inserted into a dedicated slot on the motherboard.

The main characteristics of the graphics adapter include:

• the amount of video memory;
• RAMDAC frequency;
• type of video memory;
• bit depth of the memory bus;
• clock frequency of the video processor;
• connectors.

Monitor

To display graphical and textual information, a monitor is needed, known as a display, a screen. There are two types of this device: on liquid crystals; on cathode ray tubes. Recently, the first type of monitors has become very popular, because it is compact, less dangerous for vision, and gives greater image clarity.

The main characteristics of any display are:

• diagonal;
• permission;
• screen grain size;
• regeneration frequency;
• imaging;
• color display accuracy;
• viewing angle;
• power consumption and radiation;
• interface;
• scope.

In addition to the main types of monitors, there are others that are used in everyday life much less often:

• plasma screens;
• organic LED;
• vacuum fluorescent;
• electrostatic emission displays;
• electroluminescent.

Keyboard

A keyboard is required to enter textual information and control the computer. In a stationary computer, it acts as a separate unit equipped with a main and additional module. The keyboard is included in the list of devices that determine what the computer consists of. You can work without a keyboard, but it is extremely inconvenient. In laptops, this device is built into the case. modern device has 105 keys. If there are more buttons, then they are designed to control multimedia content.

The keyboard connects to the computer using one of three methods:

Some devices are equipped with a built-in touchpad, similar to the pointing device used in a laptop. In addition, you can look at the keyboard, the shape of which differs from the classic. The ergonomic device is divided into two parts, where the hands are located at a certain angle to each other.

Mouse

For convenient cursor control, the "mouse" manipulator is usually used. This device is classified according to the following criteria: by the number of buttons; by connection method; by way of action. According to the first attribute, mice are divided into two-button and three-button. According to the second - to devices connected via cable or wirelessly. According to the third, they are optical and mechanical. Recently, optical specimens equipped with a micro-camera from below have gained particular popularity. It is necessary to fix the position of the mouse so that the signal can be processed by the CPU in the future. Optical models are characterized by high accuracy, no need for periodic cleaning and the presence of a mat.

Printer

If you need to print information on paper, then you can not do without printers. This external devices connected to a computer with a cable. As a rule, they are connected via a USB port. There are monochrome (black and white) and color devices. In addition, printers are dot-matrix, inkjet, laser. The first type is used extremely rarely today because of its numerous and significant drawbacks - high cost, low print quality, high noise, low print speed. Inkjet printers apply ink through nozzles (special holes), and under the influence of an electric current, the ink is fixed on paper. The disadvantages of this type include the low speed of operation, as well as the fact that when the ink dries in the matrix, it is necessary to replace the entire part. Laser printers print using heat-set toner. There is only one drawback of such a device: the relative high cost.

Scanner

The device needed to digitize information through image analysis is called a scanner. An ergonomic model for work is a tablet copy. It is understood that an object will be placed on the glass of the tablet. It must be placed with the side to be scanned down. The object is protected by a special cover. Under the glass of the tablet there is a mechanism developed from a set of mirrors and rulers. During operation, the platform moves and transmits a full-fledged image to the screen. The scanner is capable of digitizing photographs, text, film, barcodes, etc.

This device has the following features:

• hardware resolution;
• optical resolution;
• color depth;
• type of optical system;
• way to connect to a computer.

How to choose a computer

When choosing a computer, it is necessary to determine what tasks it should perform. There are three options for the purpose for which the selection of a computer is carried out:

• viewing mail, film; listening to music; chatting in Internet;
• games; viewing mail, film; listening to music; chatting in Internet;
• work in powerful programs; watching high definition video.

In each of the three situations, the computer will be selected in a special way. So, for the first case, it is necessary to choose computers that do not differ in special performance, with average characteristics. In the second situation, you need to consider the type of game. This is what determines how powerful the car should be. In the third case, you will need a powerful processor, a large amount of RAM, a powerful video card. When choosing any computer, you need to remember that the machine must be balanced. This means that all components should be approximately equal in performance. Otherwise, the computer will function incorrectly and irrationally.

Conclusion

Today, almost every home has a computer. Its role is difficult to overestimate, because the number of areas in which computers are used is constantly growing. Therefore, it becomes necessary to study its main components in order to understand the principle of operation of the technological achievement of mankind.

Personal Computer is a complex electronic device designed to perform a wide range of tasks. It can be various calculations, calculations, listening to music, watching videos, various office tasks, games and much more.

Personal Computer may be stationary or mobile. TO mobile computers include laptops, netbooks and tablets.

The desktop computer has also recently undergone changes, but in most cases it is a system unit, monitor, input devices (keyboard and mouse), audio devices (speakers, headphones and microphone), as well as other peripheral devices (printer, scanner, etc.). .).

For the normal functioning of a personal computer, only a system unit, a monitor, a keyboard and a mouse are needed.

It is also necessary operating system, in most cases they use Windows, but you can also download Linux.
Next, we will take a closer look at each of these devices.

System unit

Main node personal computer is the system unit. It is a case, most often a metal vertical box, on the front panel of which there are power buttons and disk drives. All the necessary connectors and cables are displayed on the back wall. The system unit consists of a power supply, a motherboard (it is also a motherboard or “motherboard”), a hard disk drive (HDD), a video card, a processor (CPU), random access memory (RAM), disk drives (CD / DVD), a sound card and a network fees. Often, the network and sound cards are integrated into the motherboard, that is, the radio elements of the board are soldered directly on the motherboard.

power unit

The power supply is made in the form of a separate box, which is located at the top rear of the system unit and has several power cables for all elements of the system unit.

power unit

Motherboard

The motherboard is the largest printed circuit board in the system unit, on which all the main components of the computer (CPU, RAM, video card) are installed, it also has connectors for connecting hard disk and floppy drives, as well as USB ports and connectors that go to the back of the case. The motherboard coordinates the operation of all computer devices.

Motherboard

CPU

The processor is a microcircuit designed to perform basic computing operations. Processors are produced by two companies AMD and Intel. Depending on the manufacturer of the processor, the socket (its installation location) is also different, so you should not forget this when choosing a motherboard. You simply won't put an AMD processor into an Intel motherboard.

CPU

video card

The video card is a separate printed circuit board installed in the slot PCI Express motherboard and is designed to display the image on the monitor screen. It processes the received information and converts it into an analog and digital video signal, which is fed to the monitor through a connector via a cable. A video card usually has a processor (GPU) and RAM.

video card

RAM

RAM is one or more small cards installed in special slots on the motherboard (DDR). RAM provides temporary storage of intermediate data during computer operation. RAM is characterized by the speed of access and the amount of memory. To date, the fastest memory has the DDR3 standard.

RAM

HDD

The hard drive is a permanent storage of data, it can be both user data and system or temporary data. The operating system is stored on the hard disk, without which the normal operation of the computer will be impossible. Also, the operating system can use the hard disk to save the contents of RAM (for example, in hibernation mode). It is a closed metal parallelepiped hard drive, which is connected to the motherboard via a connector (SATA).

HDD

Drive

The optical disc drive looks like a hard drive, but has a retractable optical disc tray on the front panel. Serves as a drive for reading and writing optical discs.

Other additional devices may be installed on the system board, such as a Wi-Fi module or a TV tuner.

Monitor

The computer monitor serves to provide a graphical representation of information that is clearly understandable to the PC user. Recently, only liquid crystal displays (LCDs) have been produced. Monitors can be equipped with digital and/or analog video connectors (DVI, HDMI).

Keyboard

The keyboard is an essential input device for any computer. The keyboard is a group of keys for entering symbolic information. Also, many modern keyboards are equipped with additional keys, for example, to control media players and various programs.