How does the computer work and what does it include?

One of the first questions that begs the beginning users: "How does the computer work?" After all, in order to confidently work on it, you need to understand its organization and understand what is included in its composition. This information will be considered in the framework of this article.

General form

The structure of any modern personal computer includes the following elements:

• Monitor.
• System unit.
• Input and output devices.

The monitor is designed to output information. With its help, the user interacts with the computer easily and simply. The system unit interconnects individual components located outside. It connects to the monitor and the entire periphery. But how the computer is arranged inside the system unit will be described in the next section. This includes many components, and they need to be considered separately. Now find out how the computer is arranged from the position of input and output organization. This class of devices includes its entire periphery. It 's a mouse, a keyboard, a scanner, and a printer. The first three are used only to enter information. The latter displays it on paper. Now multi-functional devices have become increasingly popular , which combine not only a printer with a scanner, but also a copying machine.

System unit

The following components of the personal computer are located in the system unit:

• A processor with a fan for cooling.
• Video card.
• Motherboard.
• RAM.
• HDD.
• Power Supply.
• The card reader.
• CD drive.

The processor is the main chip in the system. It is installed on the motherboard. It includes a control device, a cache (fast memory for storing the most important data), memory registers and an arithmetic-logical device. This is how the computer's processor works. He gets very hot during work. Therefore, to cool it, fans are used, which are called coolers.

The video card is installed in the main PC board. Its main task is to display the image on the monitor screen. It is equipped for this purpose with a separate powerful microcircuit and its own memory. The motherboard is the unifying element of the entire system. On it everything is installed or connected.

The storage subsystem on the PC consists of two components: volatile and long-term storage. In the first case, this is RAM, which has a high speed, but when disabled, it is completely reset. And the second is a hard drive that saves data for a long time. This is how the memory of the computer is arranged .

The power supply unit is responsible for organizing the power supply of the system. This is a separate "box", which is installed on the top or bottom of the back of the system unit. The card reader and drive of the compact discs are similar. They work with removable media. The first organizes work with various types of flash drives, and the second - with CDs (CD, DVD and Blu-ray, depending on the model).

Conclusion

It is important to understand how the computer is arranged. Due to this it will be easier to work on it. Also, when malfunctions appear, it will be possible to diagnose and eliminate them. It is from this position that one must know and understand the structure of a modern computer.