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Keyboard
              A keyboard is probably the mostly used input device which can be either
              wired or wireless. It is used to accept textual  data from the user. It is
              impossible to imagine a computer without one. A typical keyboard has a
              typing area that includes the letters of the alphabet, numbers, punctuation         Keyboard
              marks, and other basic keys similar to those of a typewriter.

                                 Mouse

                                 A mouse is another input device which is also known as a Pointing Device. As you move the
                                 mouse, the pointer on the screen moves. A typical mouse has two buttons and a wheel. It can be
                    Mouse        either wired or wireless.
              Scanner

              A scanner is a device used to read the hand written notes, images, photos, and transfer it
              in a digital form onto the computer where it can later be saved or manipulated as per the
              requirement.
                                                                                                        Scanner
                                 Light Pen

                                 A light pen is a pointing device shaped like a pen and is connected to a VDU. The tip of the light
                                 pen contains a light-sensitive element which, when placed against the screen, detects the light
                                 from the screen enabling the computer to identify the location of the pen on the screen. We
                  Light Pen      generally use it to make a selection or draw anything on a screen.
              Touchscreen

              Touchscreen is the latest in the input devices where the input can be taken from the user
              through the touch of a finger, stylus, or light pen on a display screen. We can give the
              entire set of commands by touching. Nowadays, most laptops, smart TVs, smartphones,
              tablets, etc. also have touch screens where the use of the keyboard is minimised. It is a
              very useful and convenient alternative to a mouse or a keyboard in a graphical user
              interface.                                                                               Touchscreen


                                Microphone
                                Microphone is a device that converts the sound received, into a digital audio form which can be
                                easily stored or manipulated in a computer.
                 Microphone
              Barcode Reader

              A bar code is a set of parallel lines that appear on the products as their identification. You
              will find most of the packages have these barcodes that can be easily read by barcode
              readers. Bar code readers work by placing a beam of light on the lines that make up the
              bar code and detecting the amount of light that is reflected back. The barcode read is
              then stored in the computer for preparing invoices.                                   Barcode Reader


                                   MICR
                                   The bank account number and other details are printed onto bank cheques which are read by
                                   Magnetic Ink Character Recognition using a special magnetic ink. They are useful to find out

                    MICR           whether the cheque is genuine or fake.

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