COMPUTER PERIPHERALS  What are they? + Ranking ▷ 2020

In computing, there are many terms with which you may not be very identified but that you have used over time. A clear example of this are the peripherals. In simple words, they are nothing more than elements external to the computer that allow to improve the use of said equipment.

Is considered peripheral to any set of devices that do not belong to the fundamental core of the PC. There are different peripheral classifications and each of them plays an important role in terms of the use of a Pc it means.

If you want to know what are peripherals, what they are for and even their different classifications, you should keep reading.

What are computer peripherals and what are they for?

In more detail, peripherals are all those devices with which a computer communicates with the outside and that also allow you to store information, serving as auxiliary memory of the main.

This type of external devices are totally independent from a computer and its use is so common, which are already considered part of it. An important point to highlight is that the union gate or link the peripherals with your equipment, is through USB, COM, etc.

A clear example of peripherals is the mouse, camera, keyboard, flash drive and many other devices that we usually work with in conjunction with a computer.

How are computer peripherals classified and how are they different?

The term peripheral was implemented to refer to any device external to the computer that is optional to use but not essential. However, this has changed over time, as many of these elements have been become essential for a computer system.

So that you know in depth about them, below we will explain the five classifications of peripherals:


Input peripherals

The input peripherals are all those that are in charge of capturing and digitizing the data if necessary. They are entered by the user or by another device, and are sent to the computer to be processed.

The most common are:

  • Keyboard (keyboard): they serve for enter orders and data into the computer. There are physical keyboards (the most common) or virtual (on-screen or touch keyboards). They come from the typewriter and each key corresponds to one or more characters.
  • Mouse (mouse): is of use Handbook and serves as data input or control device. It is used with one of the two hands of the user and the actions carried out through it are reflected with a pointer or arrow on the monitor.
  • Scanner (scanner): is used for turn into, through the use of light, images or any other document printed in a digital file. These files are processed with an optical character recognition program (OCR).
  • Touch panel (touchpad): arose from use of mouse. As the name implies, it is a touch panel that allows the user to control a cursor or facilitate navigation on the computer. They are usually located on the bottom of keyboards.
  • Fingerprint sensor: They are also known by the name of fingerprint sensor and are capable of reading, saving and identifying a user’s fingerprints to perform different tasks in the computer. For example, they serve as a security mechanism for unlock equipment, an app, etc. Many computers include it.
  • Webcam (webcam): is a small digital camera that connects to computers to capture images and transmit them over the internet. Previously they were displayed as independent devices that you could hook up, yet today come built-in on many computers.
  • Microphone: with the help of microphone, I know they record all the audios or sounds that you want to record with the help of a computer application for this. In addition, it supports the use of speech or voice recognition to perform different tasks on the computer, such as browsing the web.


Output peripherals

On the other hand, the output peripherals are responsible for receiving the information processed by the computer and reproducing it, so that it can be perceived by the user. There are many types of them, subdivided according to their functionality. For example, there are peripherals of visual, auditory and tactile output.

Here are some of the most used:

  • Monitor: The screen or monitor is one of the main parts of the computer and on it is project images, videos and all content that are managed on your computer. In more technical words, it is responsible for displaying the results or processing graphics of a Pc. There are different types of monitors: CRT, PDP, LCD, OLED, etc.
  • Printer: with it you can produce copies of texts, graphics, documents, and all types of files stored in electronic physical form. That is, with the help of the printer can be reproduced documents from the computer to the physical world, through paper or other printing materials.
  • Speaker: is used for listen to all the sounds emitted by the computersuch as music, sounds or error alerts, lectures, etc. Sound is transmitted by sound waves.
  • Headphones: they are also known by the term “headphones”And it can be said that they are devices whose purpose is to allow the user both hear how to make sounds for two-way communication. One is used in each ear and they are removable, meaning that they can be connected and disconnected from a device whenever necessary.

Input / output

Input / output peripherals

The input and output peripherals are those devices that allow both sending and receiving information from a computer. Their main function is store or save all the information that is made in the equipment.

Among the main peripheral input / output devices are:

  • Touch screen: it is only one screen what, with a direct touch on its surface, allows the input of data and orders to the device. Added to that, it also shows the results that were previously entered. Contact with the touch screen can be made directly with your fingers or with stylus pens.
  • Virtual helmet: are used mostly in video game and collect data from the computer to show them to the user. In turn, the user can make a movement that is collected by the device and reflected on the equipment to be used within the game or app. In this classification, the holographic glasses.


Storage peripherals

When referring to storage peripherals, it could be said that they are all those that save the data used by the CPU once it is removed from main memory. These types of peripherals can be internal, portable or removable.

Some of the most common are:

  • Flash memory: flash memory allows both reading like writing multiple memory locations in the same operation. It is a technology used in USB sticks and solid state drives.
  • HDD: is a device of storage which is built into computers. They were originally removableHowever, these days they usually come sealed. They can be found from different recognized brands such as Toshiba, Seagate or Western Digital.
  • Optical disc: they are not as fast as hard drives, but are characterized by encode, save and store information using lasers. Its price is usually lower that of hard drives and provide even higher Storage capacity.


Communication peripherals

Finally, there are the communication peripherals. Their main function is facilitate and allow interaction between two or more computers. They also allow communication with a external peripheral to computer.

In summary, some communication peripherals are:

  • Router: this device send and receive data, so you can current as a peripheral input and output. Many routers on the market have a modem built in, so that with just the router you can already establish an Internet connection.
  • Network Cards (NIC): also known as network interface boards or cards. It is responsible for connecting a computer to a wireless network. It also allows resources to be shared between two or more computers. They may be built into the motherboard or connected via expansion slots.
  • Bluetooth: it is a feature that has become popular over time. Thanks to this technology, stream files of all kinds from one device to another wirelessly. Today, many computers include this feature within their computers.

What are the main peripheral faults and their possible solutions?

Main failures with peripherals

Like any device, peripherals can present failures for different reasons. Some are much more dangerous than others, so we want to list some of the main faults along with their possible solutions.

Let’s see below:

  • Mouse failure: a very common problem that occurs with use of mouse, is the difficult movement of the cursor. If the mouse is mechanical, there may be dust adhering inside the device, so the best solution is to try clean it very carefully.
  • Keyboard failure: at times, you may jam one or more keys while working on the computer keyboard. This is a response to a failure in the mechanical device, that is, to a failure with said key. The best solution is to clean it carefully.
  • Modem failure: loss of Internet signal is one of the most common mistakes when we talk about modem. It can happen for multiple reasons, such as the network being weak. In these cases, the best solution is contact the internet server.
  • Headphone faults: many times when we connect headphones to the computer, they may not be heard. The reasons for this failure are varied, but one of the most common is that not connected properly. To fix it, check that they are in the correct input and if it doesn’t work, probably have been damaged and must be replaced with new ones.

If you have any questions, leave them in the comments, we will answer you as soon as possible, and it will surely be of great help to more members of the community. Thank you! 😉

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