It is an audio input device. They can be connected to the computer to record sound or to communicate online with other people. Many computers come with microphones built into the screen or monitor, especially laptops. 
funtion:
 
They are indispensable and used only occasionally when the user wishes to transmit sound information to communicate with another team or with another person on the internet. 

keyboard :
 
In computer science, a keyboard is an input device or peripheral, partly inspired by the .... Add special keys that call some programs on the computer 
funtion:
 
In computer science, a keyboard is an input device or peripheral, partly inspired by the typewriter keyboard, which uses a system of buttons or keys, to act as mechanical levers or electronic switches that send all information to the Computer or mobile phone. 

Print documents on physical media, usually on paper, using ink cartridges or laser technology (with toner). 

It is the main output device (interface), which shows data or information to the user. 
funtion:

The main characteristics that define a monitor are in the first place, the resolution, which as it is greater or less will give us a sharper image or less.  
The resolution is measured in ppi (dots per inch, points per inch in English) or pixels, which are the result of multiplying the horizontal dots by the vertical ones that a monitor can display. 
Storage:

Device of a machine where data or instructions are stored that can later be used. 

 Its function is to transform (translate) the vibrations due to the acoustic pressure exerted on its capsule by sound waves into electrical energy or record sounds from any place or element. 

screen:
what is:
Surface of a television set, of a computer, etc., on which the image is formed 
fuction: 
It is the main output device (interface), which shows data or information to the user 
speaker:
what is: 
Apparatus for converting electrical impulses into sound; it consists of a box with an electromagnet inside that vibrates a membrane, which resonates in the box and generates the sound; It connects to a device that produces modulated electrical impulses, such as an amplifier, a radio receiver, a television or a computer. 

Computer speakers work as a new way for computers to interact with their users. These provide a means for the computer to produce audio. 

USB memory :
It is a compact, lightweight and portable micro data storage device. 

A USB memory (Universal Serial Bus), is a storage device that uses a flash memory to store information. It is also known by the name of USB flash drive, memory stick, USB stick, hard disk drive, memory drive, memory key, pen drive, among others. 

it is a peripheral that is used to "copy", through the use of light, printed images or documents in digital format.

When obtaining a digital image, defects can be corrected, cropping a specific area of ​​the image, or also digitizing text using OCR techniques. These functions can be performed by the same device or special applications. 

Device of the computer that is handled with a single hand and allows to direct the movement of the pointer on the screen to transmit diverse orders. 

It is a pointing device used to facilitate the handling of a graphic environment on a computer. It is usually made of plastic, and is used with one of the hands. It detects its relative movement in two dimensions by the flat surface on which it rests, usually reflected through a pointer, cursoro arrow on the monitor. 

allows to produce a permanent range of texts or graphics of documents stored in an electronic format, printing them on physical media, usually on paper, using ink cartridges or laser technology 

The monitor or screen is the device responsible for displaying the images of the PC. Your choice is very important as you must visualize your programs correctly while keeping your brain and eyes rested. 

A USB stick (from Universal Serial Bus), is a storage device.

Data storage element in magnetic or optical form, consisting of a thin sheet with circular shape.
hard disk Disk with a large storage capacity for computer data that is permanently inserted into the central processing unit of the computer.

In computing, a keyboard is a device or peripheral input, partly inspired by the keyboard of typewriters, which uses a system of buttons or keys, to act as mechanical levers or electronic switches that send all the information to the computer or mobile phone.

Scanner function You can use the scanner function to scan paper documents such as meeting materials and illustrations. Scanned documents can then be converted to a digital format such as PDF and sent to a client computer.

Hard disk drive

What is keyboard:
Function In computer science, a keyboard is an input device or peripheral, partly inspired by the typewriter keyboard, which uses a system of buttons or keys, to act as mechanical levers or electronic switches that send all information to the Computer or mobile phone.

Output 

Storage 

1. Hardware failure. Hardware failure is one of the most problematic issues affecting most users. Appropriate handling and regular maintenance can be used to prolong the durability of storage devices.
2. Data Loss. Intentional and accidental file deletion can make one to lose precious data. Data recovery programs provide a solution for lost files, deleted data, corrupt documents and hidden files. In the event of a data loss scenario, a reliable data recovery software can be used to retrieve back 70% of the lost data.

 

input components:  Mouse:Device that moves an electronic pointer on a screen that facilitates user-machine interaction. 

Joystick: It is a two or three axis control device that is used from a computer or video game console to execute the movements.  

output components: PLOTTER:It is a peripheral intended for specific printing jobs (drawings, complex schemes, parts drawing, large formats, etc.). They are used in various fields: science, engineering, design, architecture, etc. 

Speakers: Device through which the computer lets out sounds. There are both table and ear, commonly known as headphones. The functionality is the same and from the computer the volume can be regulated. 

storage components: Ram Memory: It stores the instructions executed by the processor as entered data, its processes and its results. USB Memory: It is a storage device that uses flash memory to store the information it may require and does not need batteries.