One of the first questions that arises for novice users: “How is the computer arranged?” After all, in order to work confidently on it, you need to understand its organization and understand what is included in it. This information will be considered in the framework of this article.
General form
The composition of any modern personal computer includes the following elements:
- Monitor.
- System unit.
- Input and output devices.
The monitor is designed to display information. With its help, user interaction with a computer is easily and simply organized. The system unit interconnects the individual components located outside. A monitor and all peripherals are connected to it. But the way the computer is arranged inside the system unit will be described in the next section. This includes many components and should be considered separately. Now let's find out how the computer is arranged from the perspective of organizing input and output. This class of devices includes its entire periphery. This is a mouse, and a keyboard, and a scanner, and a printer. The first three are used only for entering information. The latter displays it on paper. Nowadays, multifunctional devices that combine not only a printer with a scanner, but also a copy machine have become increasingly popular.
System unit
The following components of a personal computer are located in the system unit:
- CPU with fan for cooling.
- Video card
- Motherboard.
- RAM.
- HDD.
- Power Supply.
- Card Reader
- CD drive.
The processor is the main chip in the system. It is installed on the motherboard. It consists of 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 processor works. He is very hot during work. Therefore, for its cooling, fans are used, which are called coolers.
The video card is installed on the main PC board. Its main task is to display the image on the monitor screen. It is equipped for these purposes with a separate powerful microcircuit and its own memory. The motherboard is a unifying element of the entire system. Everything is installed on it or connected to it.
The storage subsystem on a PC consists of two components: volatile and long-term storage. In the first case, this is random access memory, which has high speed, but is completely reset when disconnected. And the second is a hard drive that saves data for a long time. This is how the computer memory works.
The power supply unit is responsible for organizing the power supply of the system. This is a separate “box”, which is installed on top or bottom of the back side of the system unit. The card reader and compact disc drive are similar. They work with removable storage media. The first organizes work with various types of flash drives, and the second - with compact discs (CD, DVD and Blu-ray, depending on the model).
Conclusion
It is important to understand how a computer works. Due to this, it will be easier to work on it. Also, when faults occur, it will be possible to diagnose and fix them. It is from this position that you need to know and understand the structure of a modern computer.