External parts of the computer and its characteristics

these items are important to your computer, while others are accessories. External parts of the computer and its characteristics.

External parts of the computer and its characteristics
External parts of the computer and its characteristics

The external parts of the computer are those that can be observed with the naked eye without having to open or disarm the device. Some of these items are important to your computer, while others are accessories. External parts of the computer and its characteristics.

Among the most important tools - to highlight the case, monitor, keyboard and mouse.

The monitor is a peripheral element of information output, while the keyboard and mouse are peripheral elements of input.

On the other hand, some auxiliary or insignificant elements are cornets, a printer, a camera, a microphone and a scanner.

They are not necessary for the operation of the computer, but can improve its performance. The cornet and the printer are the peripheral parts of the information output. Others are peripheral input elements.

You may also be interested in the interior of your computer.

The most important external elements of the computer

The following is a list of the most important and important external components of your computer.

1-Case

A computer case or device is a device that has a computer motherboard installed. Without this, the computer cannot work. There are vertical and horizontal boxes.

2- Monitor

The monitor is a peripheral output device. This is a peripheral element because it allows communication between the user and the equipment. It is displayed because the screen materializes information that is processed on a computer.

The monitor works with a number of points that light up according to the binary coding matrix. A video card, which is an internal part of a computer, is used to control this system.

3- Keyboard

The keyboard is the most important peripheral input device for your computer. Entered because it allows you to enter information into the equipment.

This device consists of a series of keys and a microprocessor that transmits information from the keyboard to the computer's CPU.

Desktops typically have a 101-key keyboard, but laptops in some cases have fewer.

Some of the most important keys to these peripherals are:

  • Alphabetically, in which the letters are located.
  • Numeric keys.
  • Function keys (F1, F2 ... F12), which make operations easier.
  • Navigation keys that allow you to move in all four directions.
  • Exit key.
  • Control keys.
  • Block uppercase letters.
  • Shift appears, making secondary functions of certain keys.
  • Alt, which calls for additional key functions.
  • Launch, rotate, advance and end keys, which allow you to scroll pages up and down.
  • Enter key.
  • Remove the key.

4 - Mouse

After the keyboard, the mouse is the second most important input device in the computer. This reduces keyboard usage and makes navigation faster.

Initially, the mouse was equipped with a sphere below. Moving this area to the desktop, the mouse cursor moves on the computer screen.

This system was later replaced by infrared technology, which is more efficient. The traditional design of the mouse consists of two buttons and a rotating disk.

The buttons allow you to select and open the options menu, and the panel is used to scroll up and down.

5 Cornets

Cornets are peripheral output devices. They amplify the sounds coming from the computer. Some equipment has built-in horns, others require the installation of external horns.

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6- Microphone

The microphone is a peripheral input device. This is responsible for capturing the sounds that occur around the computer.

Once the sound has been recorded, it can be stored in the equipment (as a recording), sent to other equipment (as a call) or sent to the cornets to be amplified.

7- Camera

The camera is a peripheral input device that is responsible for capturing images and videos. Together with the microphone, it allows you to record video from audio.

The information received by the camera can be saved (as an audiovisual recording) or can be transferred to another computer (via video call).

8- Printer

Printers are elements of information output. Thanks to this, you can capture on paper the data stored on your computer.

The first printers were influential and worked on a technology similar to typewriter technology: it was printed letter by letter. However, they were very slow and loud, so they were moved.

Currently, the most commonly used printers are thermal and laser. Thermal printers work thanks to several rollers moistened with a mixture of ink and wax.

Subsequently, the roller passes through the paper, expressing information. Black and white thermal printers use one roller, and color printers have three (one for each primary color).

For their part, laser printers work with toner (a type of powder ink), photoconductive rollers and laser beams. These printers are the fastest and most efficient on the market.

9 - Scanner

A scanner is an input system. It works like a copier because it reads the image and makes a copy of it. The difference is that the copy made is digital and stored in computer memory.

This device consists of two essential elements: an optical system and an analog-to-digital converter. The optical system is responsible for studying the image to scan, determine the colors and tones available on the page.

The information provided by the optical system is analyzed with an analog-to-digital converter. This converts this data into a binary system so that the computer can interpret and store the images.