What is Input device easy language definition with example?

What is Input device easy explain word

 An input device is any device that provides input to a computer. There are dozens of possible input devices, but the two most common ones are a keyboard and mouse.

Some input device name it which are used in computer system.

         1. Keyboard

     

The keyboard is a basic input device that is used to enter data into a computer by 

pressing keys. 

It has different sets of keys for letters, numbers, characters, and functions.

Keyboards are of two sizes 84 keys or 101/102 keys, but now keyboards with 104 

keys or 108 keys are also available.

Types of keyboards:

1. QWERTY Keyboard:

It is the most commonly used keyboard with computers in modern times.

 It is named after the first six letters of the top row of buttons.

         

Keyboard continues…

Types of keyboards:

2. AZERTY Keyboard:

It is considered the standard French keyboard.

 It is developed in France.

Its name is derived from the first six letters that appear on the top left row of the 

keyboard.

The Q and W keys in AZERTY keyboard are interchanged with A and Z keys in

     

                    2.MOUSE

Mouse is the most popular pointing device.

Mouse is a input device that controls a cursor in a GUI (graphical user interface) 

and can move and select text, icons, files, and folders on our computer.

It has two buttons called the left and the right button and a wheel is present 

between the buttons. 

A mouse can be used to control the position of the cursor on the screen, but it 

cannot be used to enter text into the computer.

                     3.JOYSTICK 

        Joystick is also a pointing device, which is used to move the cursor position on a 

monitor screen.

 It is a stick having a spherical ball at its both lower and upper ends.

 The lower spherical ball moves in a socket.

 The joystick can be moved in all four directions.

The function of the joystick is similar to that of a mouse. It is mainly used in 

playing computer games.

                     4.LIGHT PEN

          Light pen is a pointing device similar to a pen.

 It is used to select a displayed menu item or draw pictures on the monitor screen.

                 5.  SCANNER

           Scanner is an input device, which works more like a photocopy machine.

The scanner uses the pictures and pages of text as input. 

It scans the picture or a document. The scanned picture or document then 

converted into a digital format or file and is displayed on the screen as an output.

               6.   BCR(Bar Code Readers)

        Bar Code Reader is a device used for reading bar coded data (data in the form of 

light and dark lines). 

Bar coded data is generally used in labelling goods, numbering the books, etc.

Bar Code Reader scans a bar code image, converts it into an alphanumeric value, 

which is then fed to the computer that the bar code reader is connected to.

                  7. MICROPHONE

        The microphone is a computer input device that is used to input the sound.

 It receives the sound vibrations and converts them into audio signals or sends to a 

recording medium.

         8. Optical Mark Reader (OMR)

      OMR is a special type of optical scanner used to recognize the type of mark made 

by pen or pencil.

 It is used where one out of a few alternatives is to be selected and marked.

It is specially used for checking the answer sheets of examinations having multiple 

choice questions.

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