I planned to write a series of useful articles for beginners on how to choose and purchase a computer of the desired configuration (as well as a tablet) and for solving certain problems: work, study, games, work with graphics. Before touching directly on the choice of a home computer or laptop to solve their problems, it would be more correct to first explain to beginners what a computer is made of in general ... Therefore, in this article I will talk about the main components of a typical home (stationary) computer so that you have an idea of how it is arranged, what a particular component looks like, what characteristics it has and what it is responsible for. All this information can be useful for simple novice users when choosing and buying a computer ... By "Basic" I meant those components (components) that can be removed and can be easily replaced. To put it simply, I won't go too far and go into great detail on how a computer works, explaining each element on the boards and the internals of each component. This blog is read by a lot of beginners, and I think that talking about all complex processes and terms right away is not good and will just cause a mess in my head :)
So, let's move on to considering the components of any on the example of an ordinary home computer. In laptops and netbooks, you can find everything the same, just in a much smaller version.
What are the main components of a computer?
Video card(video adapter or "vidyuha", as more or less advanced computer users call it). This device is responsible for forming and displaying an image on the screen of a monitor or any other similar connected device. Video cards are built-in (integrated) and external (discrete). An integrated video card is currently available in the vast majority of motherboards and visually we see only its output - a connector for connecting a monitor. An external video card is connected to the board separately in the form of another board with its own cooling system (radiator or fan).
What's the difference between them, you ask? The difference is that the built-in video card is not designed to run resource-intensive games or work in professional image and video editors. It simply does not have enough power to process such graphics and everything will slow down a lot. The built-in vidyuha today can be used rather as a temporary backup option. For everything else, you need at least some kind of unpretentious external video card and which one already depends on the preferences for using the computer: for Internet surfing, working with documents, or for games.
The main characteristics of a video card are: a connector for connecting to a motherboard, the frequency of the graphics processor (the higher it is, the better), the amount and type of video memory, and the bit width of the video memory bus.
This is what the video card looks like:
Sound adapter... Each computer has at least a built-in sound card and is responsible, respectively, for processing and outputting sound. Very often it is the built-in one and not everyone buys a discrete sound card for themselves, which is connected to the motherboard. For me personally, for example, the built-in is quite enough and I, in principle, do not pay attention to this component of the computer at all. A discrete sound card will produce much better sound quality and is indispensable if you are doing music, working in any programs for processing music. And if you are not fond of anything like that, then you can safely use the built-in one and not think about this component when buying.
This is what a discrete sound card looks like:
Network adapter... Serves to connect the computer to the internal network and to the Internet. Also, like a sound adapter, it can very often be built-in, which is enough for many. Those. in this case, you will not see an additional network adapter card in the computer. The main characteristic is the bandwidth, measured in Mbps. If the motherboard has a built-in network adapter, and it is usually found in the overwhelming majority of motherboards, then there is nothing to buy a new one for the house. You can determine its presence on the board by the connector for connecting an Internet cable (twisted pair). If there is such a connector, then the board has a built-in network adapter, respectively.
This is what a discrete NIC looks like:
Power supply unit (PSU)... A very important component of a computer. It is connected to the mains and serves to supply direct current to all other components of the computer, converting the mains voltage to the required values. And computer devices operate at voltages: + 3.3V, + 5V, + 12V. Negative voltages are practically not used. The main characteristic of the power supply is its power and is measured, respectively, in watts. A power supply unit with such a capacity is installed in the computer so that it is enough to power all the components of the computer. The video adapter will consume the most (its power consumption will necessarily be indicated in the documentation), so you need to focus on it and take it just with a small margin. Also, the power supply must have all the necessary connectors for connection to all available computer components: motherboard, processor, HDD and SSD disks, video adapter, floppy drive.
This is what the power supply looks like:
Disk drive (drive)... This is already an additional device, which, in principle, can be dispensed with altogether. Serves, respectively, for reading CD / DVD / Blu-Ray discs. If you plan to read or write any discs on your computer, then, of course, such a device is necessary. Of the characteristics, we can only note the ability of the drive to read and write various types of disks, as well as the connector for connecting to the board, which today is almost always SATA.
This is what the floppy drive looks like:
CPU... This is the brain of the computer. It is the main component and performs all calculations in the computer, controls all operations and processes. It is also one of the most expensive components, and the price of a very good modern processor can exceed 50,000 rubles.
There are processors from Intel and AMD. Here who likes what, and so, Intel heats up less, consume less electricity. With all this, AMD has better graphics processing, i.e. would be more suitable for gaming computers and those where work will be carried out with powerful image editors, 3D graphics, video. In my opinion, this difference between processors is not so significant and noticeable ...
The main characteristic is the processor frequency (measured in Hertz. For example 2.5GHz), as well as the connector for connecting to the motherboard (socket. For example, LGA 1150).
This is what the processor looks like (the company and model are indicated at the top):
Motherboard (system) board... This is the largest board in the computer and is the link between all the other components. All other devices, including peripherals, are connected to the motherboard. There are many motherboard manufacturers, and ASUS and Gigabyte are at the top, as the most reliable and at the same time expensive, respectively. The main characteristics are: the type of the supported processor (socket), the type of supported RAM (DDR2, DDR3, DDR4), the form factor (determines which case you can fit this board into), as well as the types of connectors for connecting the rest of the computer components. For example, modern hard drives (HDD) and SSD drives are connected via SATA3 connectors, video adapters - via PCI-E x16 3.0 connectors.
This is what the motherboard looks like:
Memory... Here we will divide it into 2 main types, which will be important to pay attention to when buying:
All that is listed above is the main thing, without which, as a rule, no computer can do. In laptops, everything is the same, only there may often be no disk drive, but this already depends on which model you choose and whether you need this drive at all. There may also be other components that will also be connected to the motherboard, for example: Wi-Fi adapter, TV tuner, video capture devices. There may be other additional components that are completely optional, so we will not dwell on them for now. Now almost every laptop has a Wi-Fi adapter for connecting to the Internet via a wireless network, as well as a built-in TV tuner. In stationary home computers, all this is purchased, as a rule, separately!
Computer case
All those main components I listed above have to be located somewhere, not just lying on the floor, right? :) All computer components are placed in a special case (system unit) in order to exclude external influences on them, protect them from damage and maintain the required temperature inside the case due to the fans in it. You also start your computer using the button on the case, so you can't do without the case :)
Cases come in different sizes and the smallest case, of course, will not fit, for example, a standard motherboard. Therefore, the main characteristic of the case is the form factor of the supported motherboards. If the largest cases (Full Tower) are able to accommodate boards of any size and any components so that it will also be more or less free and, if necessary, remove any of the components, there will be no inconvenience.
This is what a computer case looks like:
Monitor
Also, already outside the case, another important device will be located - a monitor. The monitor is connected with a wire to the motherboard and without it, you, accordingly, will not see everything that you do on the computer :) The main parameters of the monitor are:
Screen diagonal in inches;
Supported screen resolutions such as 1920 × 1080. The larger it is, the better;
Viewing angle. Affects how the image will be seen when looking at the monitor from the side or slightly above / below. The larger the viewing angle, the better.
Brightness and contrast. Brightness is measured in cd / m2 and in good models lies beyond 300, and the contrast should be at least 1: 1000 for good display.
This is what the monitor looks like:
In addition to the main components of a computer listed above, there are also peripheral devices. Peripherals are various additional and auxiliary devices that allow you to expand the capabilities of your computer. This includes many devices, for example: a computer mouse, keyboard, headphones, microphone, printer, scanner, copier, graphic tablet, joystick, web-camera.
All these devices will already be convenient to touch on in separate topics, since each of them has its own characteristics and features. The easiest way to choose a keyboard and a mouse is, the main thing is that the connection to the computer is via USB or even via a radio channel without a wire, and all other parameters are selected individually, and the main thing here is to make it just convenient.
Read about the choice of the most basic peripherals in the article:
This concludes the analysis of the computer components. I hope that such an article will be to some extent useful for beginners, and those who did not understand at all what is in the computer and what is needed, now I can more or less imagine :) Also, this information, I think, will be useful for choosing a computer and even more so the subsequent articles will just be about choosing and buying a home computer.
Have a nice day, everyone! Bye;)
Personal Computer is a complex electronic device designed to perform a wide range of tasks. This can be various calculations, calculations, listening to music, watching videos, various office tasks, games, and much more.
Personal Computer can be stationary or mobile. Mobile computers include laptops, netbooks, and tablets.
A desktop computer has also recently undergone changes, but in most cases it is a system unit, a monitor, input devices (keyboard and mouse), audio devices (speakers, headphones and a 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 required.
An operating system is also required, in most cases they use Windows, but you can also download Linux.
Next, we'll take a closer look at each of these devices.
System unit
The 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 necessary connectors and cables are brought out to the back wall. The system unit consists of a power supply, a motherboard (it is also a motherboard or "motherboard"), a hard disk (HDD), a video card, a processor (CPU), random access memory (RAM), drives (CD / DVD), a sound card and a network boards. 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 Supply
The power supply is made in the form of a separate box, which is located at the top of the rear of the system unit and has several power cables for all elements of the system unit.
Power Supply
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 a hard disk and floppy drives, as well as USB port cables and connectors going to the rear panel of the case ... The motherboard performs the coordination of the work of all devices in the computer.
Motherboard
CPU
A processor is a microcircuit designed to perform basic computing operations. The processors are manufactured by two companies AMD and Intel. Depending on the manufacturer of the processor, the connector (the place of its installation) is also different, so you should not forget this when choosing a motherboard. You just don't plug an AMD processor into an Intel processor motherboard.
CPU
Video card
The video card is a separate printed circuit board installed in the PCI Express slot of the motherboard and is designed to display the image on the monitor screen. It processes the information received and converts it into an analog and digital video signal, which is fed to the monitor via a connector via a cable. A video card usually has a processor (GPU) and video RAM.
Video card
RAM
Random access memory is one or more small boards installed in special sockets on the motherboard (DDR). Random access memory provides temporary storage of intermediate data during computer operation. Random access memory is characterized by the speed of access and the amount of memory. By far the fastest memory is DDR3.
RAM
HDD
A hard disk is a permanent storage of data; it can be both user data and system or temporary data. The hard disk contains the operating system, without which the normal operation of the computer will be impossible. Also, the operating system can use the hard drive to save the contents of RAM (for example, in hibernation mode). It is a closed metal parallelepiped hard disk that is connected to the motherboard via a SATA connector.
HDD
Drive
An optical drive looks like a hard drive, but has a slide-out optical drive tray on the front panel. Serves as a drive for reading and writing optical discs.
The system board can also be installed with other additional devices, such as a Wi-Fi module or a TV tuner.
Monitor
The computer monitor serves for graphical presentation 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.
A computer is a device that is capable of performing a certain variable sequence of operations. It is used in many areas of human activity. Today we will talk in more detail about what exactly the computer is intended for.
Learning Of course, someone might say that the computer does not help in any way to learn, but I fundamentally disagree with this opinion. A trivial example: you need to find the definition of a word. Where will you get it? You can open the dictionary and search for the term you want. But, firstly, you need to have this dictionary, and secondly, if a term contains several words, then it is far from the fact that the dictionary can help. Wikipedia is different - a couple of seconds and now you see the definition of the term.
Another simplest example. You need to write a term paper. How will you write it? The answer is obvious.
Entertainment Many computer owners use their computer primarily for a pleasant pastime. What can be attributed to this? Yes, a lot of things.
- Computer games
- Surfing Websites
- Watching films
- Listening to music
- Reading of books
As you can see, the computer really helps to enjoy your leisure time.
Work Computers are used for work in many areas. Which ones? Take, for example, a sales person who sells a product that most companies need. Let it be water delivery. Where to get clients? Previously, managers used various paper directories, today the Internet is used. And in fact, why do you need a directory when millions of companies can be found in search engines, and even for free?
Another example is a designer. Today, powerful graphic editors and applications are used for design development, in which real masterpieces are obtained.
It makes no sense to list other areas where computers are used, since even a few days will not be enough for this. The main thing that you understand is that the PC is used in many areas.
Communication Communication is very important. If earlier we could contact our friends, relatives or work colleagues only by phone, today everything has changed. We can call a person anywhere in the world, and often completely free of charge! This can be done using instant messengers, and you only need to have access to the Internet to make a call.
At one time, the notorious Skype became a real discovery, because it allows you to communicate with people for free. They say that in a few years, most of the calls will be made using the Internet connection.
Data storage You may have noticed that recently so-called cloud storage is becoming more and more popular - this is a space on the network where you can "store" files. But hard drives are not going to retire, because they are easier and much more convenient to use. Hard drives allow you to store any kind of data, be it documents or movies.
Online shopping and selling Yes, yes, with the help of a computer and the Internet, you can both make purchases and sell various goods. Web commerce is growing very quickly and some companies are worth billions of dollars. For example, the well-known platform AliExpress, which allows you to buy literally everything and even a little more.
Conclusion In general, a computer is often a necessary thing. And for what it is worth using, it's up to you.
By its purpose, a computer is a universal device for working with information. According to the principles of its design, a computer is a model of a person working with information.
Personal Computer(PC) is a computer designed to serve one workstation. In terms of its characteristics, it may differ from large computers, but it is functionally capable of performing similar operations. According to the method of operation, there are desktop (desktop), portable (laptop and notebook) and pocket (palmtop) PC models.
Hardware. Since the computer provides all three classes of information methods for working with data (hardware, software and natural), it is customary to speak of a computer system as consisting of hardware and software working together. The nodes that make up the hardware of a computer are called hardware. They perform all physical work with data: registration, storage, transportation and transformation both in form and in content, and also present them in a form convenient for interaction with natural information methods of a person.
The collection of hardware in a computer is called its hardware configuration.
YouTube video
Software. Programs can be in two states: active and passive. In the passive state, the program does not work and looks like data, the meaningful part of which is information. In this state, the contents of the program can be "read" by other programs, like books are read, and modified. From it you can find out the purpose of the program and how it works. In a passive state, programs are created, edited, stored, and transported. The process of creating and editing programs is called programming.
When a program is in an active state, the content of its data is considered as instructions according to which the hardware of the computer operates. To change the order of their work, it is enough to interrupt the execution of one program and start the execution of another containing a different set of commands.
The set of programs stored on a computer forms its software. The set of programs prepared for work is called installed software. The collection of programs running at one point in time or another is called software configuration.
Computer device. Any computer (even the largest) consists of four parts:
input devices
information processing devices
storage devices
information output devices.
Structurally, these parts can be combined in one body the size of a book, or each part can consist of several rather bulky devices.
Basic PC hardware configuration... The basic hardware configuration of a personal computer is the minimum set of hardware that is sufficient to start working with a computer. Over time, the concept of a basic configuration gradually changes.
Most often, a personal computer consists of the following devices:
System unit
Monitor
Keyboard
Mouse
Additionally, other input and output devices can be connected, for example, speakers, a printer, a scanner ...
System unit- the main unit of a computer system. It contains devices that are considered internal. Devices connected to the system unit from the outside are considered external. The term peripheral equipment is also used for external devices.
Monitor- a device for visual reproduction of symbolic and graphic information. Serves as an output device. For desktop PCs, the most common monitors are currently based on cathode ray tubes. They vaguely resemble household TVs.
Keyboard- a keyboard device designed to control the operation of a computer and enter information into it. Information is entered in the form of alphanumeric character data.
Mouse- "graphical" control device.
Internal devices of a personal computer.
Internal devices are devices located in the system unit. Some of them are accessible on the front panel, which is convenient for quickly changing information media, such as floppy disks. The connectors of some devices are located on the rear wall - they are used to connect peripheral equipment. Some devices of the system unit are not provided with access - for normal operation it is not required.
CPU. Microprocessor- the main microcircuit of a personal computer. All calculations are performed in it. The main characteristic of a processor is its clock frequency (measured in megahertz, MHz). The higher the clock speed, the better the processor performance. So, for example, at a clock frequency of 500 MHz, the processor can change its
fortune 500 million times. For most operations, one clock cycle is not enough, so the number of operations a processor can perform per second depends not only on the clock speed, but also on the complexity of the operations.
The only device, the existence of which the processor "knows from birth" - is the random access memory - with which it works together. Data and commands come from there. The data is copied into the processor cells (they are called registers), and then converted in accordance with the content of the instructions. For a more complete picture of how the processor interacts with RAM, see the chapters on programming fundamentals.
RAM. RAM can be thought of as a vast array of cells that store numeric data and commands while the computer is turned on. The amount of RAM is measured in millions of bytes - megabytes (MB).
The processor can refer to any memory cell (byte), since it has a unique numeric address. The processor cannot access an individual bit of RAM, since the bit has no address. At the same time, the processor can change the state of any bit, but this requires several steps.
Motherboard. The motherboard is the largest board in a personal computer. On it are the highways connecting the processor with the RAM - the so-called buses. A distinction is made between a data bus, through which the processor copies data from memory cells, an address bus, through which it connects to specific memory cells, and an instruction bus, through which the processor receives instructions from programs. All other internal devices of the computer are also connected to the buses of the motherboard. The motherboard is controlled by a microprocessor chipset - the so-called chipset.
Video adapter. A video adapter is an internal device installed in one of the motherboard connectors. The first personal computers did not have video adapters. Instead, a small area was allocated in RAM for storing video data. A special microcircuit (video controller) read data from the video memory cells and controlled the monitor in accordance with them.
As the graphics capabilities of computers improved, the video memory area was separated from the main RAM and, together with the video controller, was allocated into a separate device, which was called a video adapter. Modern video adapters have their own computing processor (video processor), which reduces the load on the main processor when building complex images. The video processor plays an especially important role in the construction of three-dimensional images on a flat screen. In the course of such operations, he has to perform especially a lot of mathematical calculations.
In some models of motherboards, the functions of the video adapter are performed by the chipset microcircuits - in this case, they say that the video adapter is integrated with the motherboard. If the video adapter is made as a separate device, it is called a video card. The video card connector is located on the rear wall. A monitor is connected to it.
Sound adapter. For IBM PC computers, work with sound was not originally provided. The first ten years of its existence, computers of this platform were considered office equipment and did without sound devices. Nowadays, the means for working with sound are considered standard. For this, a sound adapter is installed on the motherboard. It can be integrated into the motherboard chipset, or it can be made as a separate plug-in board called a sound card.
The sound card connectors are located on the back of the computer. To reproduce sound, speakers or headphones are connected to them. A separate connector is provided for connecting a microphone. With a dedicated software, this allows you to record sound. There is also a connector (line-out) for connecting to external sound recording or reproducing equipment (tape recorders, amplifiers, etc.).
HDD. Since the computer's RAM is cleared when the power is turned off, you need a device for long-term storage of data and programs. Currently, so-called hard disks are widely used for these purposes.
The principle of operation of the hard disk is based on the registration of changes in the magnetic field near the recording head.
The main parameter of a hard disk is its capacity, measured in gigabytes (billions of bytes), GB. The average size of a modern hard disk is 80 - 160 GB, and this parameter is growing steadily.
Floppy disk drive... To transport data between remote computers, so-called floppy disks are used. A standard floppy disk (floppy disk) has a relatively small capacity of 1.44 MB. By modern standards, this is completely insufficient for most data storage and transportation tasks, but the low cost of media and high availability have made floppy disks the most common storage medium.
To write and read data located on floppy disks, a special device is used - a floppy drive. The inlet of the drive is brought out to the front panel of the system unit.
CD-ROM drive. For transporting large amounts of data, it is convenient to use CD-ROMs. These discs can only read previously written data - you cannot write to them. The capacity of one disk is about 650-700 MB.
CD-ROM drives are used to read CDs. The main parameter of the CD-ROM drive is the read speed. It is measured in multiples. The reading speed, approved in the mid-80s, is taken as a unit. for music CDs (audio CDs). Modern CD-ROM drives offer read speeds of 40x - 52x.
The main disadvantage of CD-ROM drives - the inability to write discs - is overcome in modern write-once devices - CD-R. There are also CD-RW devices that allow rewriting.
The principle of data storage on CDs is not magnetic, like floppy disks, but optical.
Communication ports... For communication with other devices, such as a printer, scanner, keyboard, mouse, etc., the computer is equipped with so-called ports. A port is more than just a connector for connecting external equipment, although a port ends with a connector. A port is a more complex device than just a connector, which has its own microcircuits and is controlled by software.
Network adapter. Computers need network adapters to communicate with each other. This device makes sure that the processor does not send a new portion of data to the external port until the network adapter of the neighboring computer has copied the previous portion to itself. After that, the processor is given a signal that the data has been taken and new ones can be supplied. This is how the transmission takes place.
When a network adapter "learns" from a neighboring adapter that it has a portion of data, it copies it to itself, and then checks whether it is addressed to it. If so, it passes them on to the processor. If not, it exposes them to the output port, from where the network adapter of the next neighboring computer will take them. This is how data moves between computers until it reaches its destination.
Network adapters can be built into the motherboard, but more often they are installed separately, in the form of additional cards called network cards.
The main devices of the computer "live" in the system unit. These include: motherboard, processor, video card, RAM, hard drive. But outside of it, usually on the table, no less important computer devices also "live". Such as: monitor, mouse, keyboard, speakers, printer.
In this article, we will look at What does computer consist of how these devices look, what function they perform, and where they are.
System unit.
In the first category, we will analyze those devices, or they are also called components, which are "hidden" in the system unit. They are most important to his work. By the way, you can immediately look into the system unit. This is not difficult. It is enough to unscrew the two bolts on the back of the system unit and move the cover to the side, and then we will see a view of the most important computer devices, in order of which we will now consider.
The motherboard is a printed circuit board that is designed to connect the main components of a computer. Some of them, for example, a processor or video card, are installed directly on the motherboard itself in the socket provided for this. And the other part of the components, for example, a hard drive or a power supply, is connected to the motherboard using special cables.
A processor is a microcircuit and at the same time the "brain" of a computer. Why? Because he is responsible for all operations. The better the processor, the faster it will perform these very operations, respectively, the computer will work faster. The processor, of course, affects the speed of the computer, and even very strongly, but the speed of the PC will also depend on your hard disk, video card and RAM. So the most powerful processor does not guarantee a high speed of the computer if the rest of the components are outdated for a long time.
3. Video card.
A video card, or in another way a graphics card, is designed to display images on the monitor screen. It is also installed in the motherboard, in a special PSI-Express connector. Less often, a video card can be built into the motherboard itself, but its power is often enough only for office applications and working on the Internet.
RAM is such a rectangular bar, similar to a cartridge from old game consoles. It is intended for temporary storage of data. For example, it stores a clipboard. We copied some text on the site, and immediately it got into the RAM. Information about running programs, computer hibernation and other temporary data are stored in RAM. A feature of the RAM is that the data from it is completely deleted after the computer is turned off.
Hard disk, unlike RAM, is designed for long-term storage of files. In another way it is called the Winchester. It stores data on special plates. Also recently, SSD drives have spread.
Their features include high speed of work, but there is immediately a minus - they are expensive. A 64 gigabyte SSD will cost you the same price as a 750 gigabyte hard drive. Imagine how much an SSD for several hundred gigabytes will cost. In, in! But don't be upset, you can buy a 64 GB SSD drive and use it as a system drive, that is, install Windows on it. They say that the speed of work increases several times. The system starts up very quickly, the programs fly. I plan to upgrade to an SSD and store regular files on a traditional hard drive.
A disk drive is needed to work with disks. Although it is already much less commonly used, it still does not interfere with stationary computers. At least the floppy drive is useful for installing the system.
6. Cooling systems.
The cooling system is made up of fans that cool the components. Usually three or more coolers are installed. Necessarily one on the processor, one on the video card, and one on the power supply, and then as desired. If something is lukewarm, then it is advisable to cool. Fans are also installed on hard drives and in the case itself. If a cooler in the case is installed on the front panel, then it takes heat, and coolers installed on the rear compartment supply cold air to the system.
The sound card outputs sound to the speakers. It is usually built into the motherboard. But it happens that it either breaks down, and therefore is bought separately, or initially the quality of the standard PC owner does not suit and he buys another sound system. In general, a sound card also qualifies for this list of PC devices.
The power supply is needed in order for all the above-described computer devices to work. It provides all the components with the required amount of electricity.
8. Body
And in order for the motherboard, processor, video card, RAM, hard disk, floppy drive, sound card, power supply and possibly some additional components to be shoved somewhere, we need a case. There, all this is neatly installed, twisted, connected and begins daily life, from turning on to turning off. The required temperature is maintained in the housing, and everything is protected from damage.
As a result, we get a full-fledged system unit, with all the most important computer devices that are needed for its operation.
Peripherals.
Well, in order to fully start working on a computer, and not look at the "buzzing" system unit, we need Peripherals. These include those computer components that are outside the system unit.
The monitor itself is needed to see what we are working with. The video card feeds the image to the monitor. They are connected to each other with a VGA or HDMI cable.
The keyboard is designed to enter information, well, of course, what a job without a full keyboard. Type text, play games, surf the Internet, and everywhere you need a keyboard.
3. Mouse.
The mouse is needed to control the cursor on the screen. Drive it in different directions, click, open files and folders, call various functions and much more. As well as without a keyboard, without a mouse anywhere.
4. Columns.
Loudspeakers are needed mainly to listen to music, watch movies and play games. Who else today uses speakers more than ordinary users reproduce them daily in these tasks.
A printer and a scanner are needed to print and scan documents and everything else you need in the field of printing. Or MFP, multifunctional device. It will be useful to all those who often prints, scans, makes photocopies and performs many other tasks with this device.
In this article, we have only briefly covered the main computer devices, and in others, the links to which you see below, we will take a closer look at all the most popular peripheral devices, as well as the components that are part of the system unit, that is, components.
Enjoy reading!
