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    The Hardware devices are classified into four categories:

                                                                 HARDWARE

                        Input Devices          Processing Device           Output Devices           Storage Devices

                      INPUT DEVICES

                      The hardware devices that are used to give inputs in the form of words, pictures,
                      sounds, etc., to a computer are called input devices. Some of the most commonly

                      used input devices are:

                      Keyboard: A keyboard is an input device used to
                      give input  to  the computer  by  typing  numbers,
                      letters and special characters.                                               Keyboard

                                     The invention of Qwerty keyboard

                                   Mouse: A mouse is an input device. We can send instructions to the
                                   computer by clicking on its buttons. It is also used to select objects and
                                   draw pictures on the screen.

                       Mouse

                      Joystick: A joystick is an input device used for playing games.

                                                                                                               Joystick

                                       Webcam: A webcam is an input device used to capture pictures or
                                       videos in digital form.

                        Webcam
                      Microphone: A microphone is an input device used to record voice,

                      music and other sounds on a computer.
                                                                                                             Microphone
                                           Light pen: A light pen is an input device used
                                           to point or draw on the screen.
                          Light Pen

                      Scanner: A scanner is an input device that reads text or images
                      and sends their copies to the computer.
                                                                                                           Scanner

                       10   Premium Edition-III

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