Не многие пользователи задумываются над тем, что hiding in the "box", which each of us includes periodically to go online, watch a movie or play games. Most often, this has to be dealt with when something in the system unit breaks down or the user is going to change the system components on their own.
The concept of
Before understanding the system deviceblock, you need to understand what it is. In fact, we have a chassis or PC case, which is filled with components, which allows the entire system to work fully.
If we take the average system, then the system unit’s device remains practically unchanged. Only the amount of content may differ. Accordingly, there may be a difference in the connection process.
Appearance
So, any computer system unit beginswith the chassis. There are many important elements on the case that contribute to the operation of the system. It is also worth noting that the case itself can have different shapes and sizes.
If you are building a computer with a form factor chassisATX, you can install any components there. But if you choose a smaller format - mATX, then the ATX motherboard will not fit in such a case. Therefore, if you are building a computer yourself, keep in mind that the PC system unit must comply with all components.
A button is usually located on the chassis.power off / on and reboot. There is also a large number of indicators and connectors. Computer activity lights are usually located in front so that the user can track the status of not only the entire PC, but also individual components, such as a hard disk.
But the connectors in the standard chassis are located onback panel. There are also models of system engineers in which all ports are located on the top of the unit. On the front panel is a pair of important connectors. But most often the main ones: a power cable, an Internet wire, a monitor slot and other connectors are located on the rear interface panel.
Goals and objectives
What will be inside the system unit depends on the goals andcomputer tasks. Usually, if the user does not understand this issue and prefers to buy ready-made PCs, then he is guided only by the advice of the seller. He can say that there are models for games, office programs or multimedia.
But if you understand the components, you cannotice that some sellers are trying to sell the device more expensive, and, accordingly, with great functionality. For example, you came at a computer that would open standard programs and allow you to access the Internet.
Its cost can be up to 10 thousand rubles.If you are lucky, you can even get a monitor or a peripheral device as a gift. But the seller understands that you are incompetent in this topic, and sells you a PC for 15 thousand rubles, which can run games, even the simplest ones. As a result, you overpay for functions that you do not need.
To prevent this from happening, it is better to either understand yourself or consult with friends.
Inside the block
The system unit has the required components, withoutwhich it will not start, and additional ones that can affect performance. So, the computer is based on the motherboard, which is often called the "circulatory system." The remaining accessories join it.
A processor is installed on the motherboard.Without it, the operation of the system is also impossible. Next, at least one RAM module is connected. To store personal data, you need a hard drive, and so that it is all fueled by electricity, a power supply is placed in the case.
All this is enough for an office computer, fromwhich does not require multitasking and running resource-intensive programs. If the system needs to be improved and assembled (for example, a game system unit), then one or a couple of video cards are installed that are responsible for the graphic component. They can improve the built-in sound system with an additional sound card.
Connectivity
How to connect the system unit?An equally important issue, especially if you are building the system yourself. The base design is the motherboard. All the elements of the PC are connected to it.
As mentioned above, it is installed on itprocessor, RAM, graphics card and other components. Motherboards are designed so that all the interfaces that are needed to connect external devices are located in one place. Accordingly, the chassis has special holes for the interface panel on the back cover.
Of course, depending on the motherboard and system tasks, different ports may be displayed on the rear panel. But in the standard assembly, you will always notice the same connectors:
- power supply 220 V;
- PC on and off button;
- PS / 2 connectors for mouse and keyboard;
- several slots for connecting monitors;
- several pairs of USB ports;
- a place to connect a network cable;
- jacks for microphone, headphones and speakers, etc.
Interfaces
So, for the mouse and keyboard you can stillMeet the PS / 2 interface. Moreover, if this connector is common on the interface panel, then there are almost no PS / 2 input devices in stores. Almost all mice and keyboards are sold via USB. However, if you have busy USB ports and don’t want to install peripherals there, you can purchase an adapter to use the long-forgotten PS / 2.
USB ports lately developers do not spare.If earlier on the panels you could notice only 2-3 pairs, now you can count more than 10 pieces. Such a quantity is quite justified, since a large number of devices switched just to this interface.
To connect the monitor, still useVGA or D-Sub, although the newer models acquire more modern interfaces such as DVI or HDMI. But since the full transition to such screens has not yet taken place, there are several connectors for this device on the panel.
To connect a network cable, the connector does notIt has been changing for a very long time, so there can be no problems with the connection or mismatch. With the microphone and headphone jacks, the situation is similar. Only occasionally can you observe the combined audio output, which is designed for a headset with a single wire. In this case, you do not need two ports to connect a microphone and headphones.
Connection inside the unit
We should also deal with howconnect system unit components. This question is extremely important. You need to delve into it yourself, while not forgetting to look into the instructions and use video lessons. They clearly show how to install all the components, as well as what their incorrect connection can lead to.
If you know for sure that all componentsfit together, so intuitively understand where and what you need to install on the motherboard. The processor is usually located in its central part, although sometimes its location can be shifted to one of the corners.
In any case, the port for the processor is presenteda rectangular connector, ideally suited to the shape of the chip itself. When connecting, you need to carefully look at the correct position of the processor and securely fix it on the board.
RAM also has its usuala slot that can hardly be confused with anything. The main thing when connecting is not to use force so as not to break anything. All components are quite freely installed in their slots, without additional clicks and pressing.
The place for the video card is also easy to notice.The slot is very similar to the one you need to install RAM, but usually a little more. The hard drive and power supply are connected using cables. But where to install them, you will have to figure it out on your own, since it depends on the motherboard model itself. But the instructions to it have all the necessary information.
Gaming PC
To finally understand this topic, you needconsider the system unit device as an example. To do this, you will need to study a couple of reviews of system units. It is very rare to find a computer having a specific model. Most often, they are sold in a custom assembly or even assembled at home.
But computer models are not a myth. They really exist and are sold, although in small quantities. So, Asus ROG GT51CA is currently considered to be one of the top system specialists.
Review Asus ROG
In the case of laptops, computers alsohave several modifications. They can fit a less efficient graphics card to reduce cost. The amount of RAM and the volume of the external drive may vary.
The described model also has several variationsassembly. Before us is the most expensive and productive system. It should be noted right away that the system unit comes in a large box and it seems that there is something else inside it besides it. The way it is. The company introduces a proprietary mouse and keyboard. You can’t name both devices gaming, but this does not make their quality worse.
Another cool feature was the presence of a specialbracelet made of silicone. At first glance, it seems like an ordinary decoration, but if you bring it to the system unit, you will have access to a special section on the disk where you can put important personal data.
Despite the fact that we have a standarda systematic form factor, yet it looks very massive. This is also evidenced by its design. The developers tried to make the most gaming system unit. You will have to install it under the table, otherwise it will take up too much space at the workplace.
Two top ones are working inside.Nvidia GeForce GTX Titan X video cards. One 2 TB hard drive and a 512 MB SSD are responsible for the memory. Processor in the Intel Core i7 6700K system, with an operating frequency of 4.2 GHz. RAM inside 64 GB. The system operates on a power supply of 700 watts.
As tests show, this is one of the mostproductive ready-made systems. Of course, you can independently assemble an even more powerful car. But this is quite enough for any modern toy and resource-intensive programs.
