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You need to place your index finger on the scroll wheel and roll it upwards or

                 downwards to move the page down or up.


                 Drag and Drop
                 Drag means to move the mouse while keeping the left mouse button pressed. It is

                 used to move an item to another location on the computer.
                 Drag and drop is a very useful action. It can be used to move objects on the
                 screen quickly.


                                                       release


                        press               move















                                            Drag and drop







                    To Sum Up


                         A mouse is a pointing device.

                         There are different types of computer mouse.

                          Pressing and releasing the left button of the mouse after pressing it once
                        is called a single-click.

                          Releasing the left button of the mouse after pressing it twice quickly is
                        called a double-click.

                         Pressing and releasing the right button once is called right-click.

                          Nowadays, a computer mouse has a wheel in between the right button
                        and the left button known as the scroll wheel.

                          Drag and  drop  is a very  useful action  to  move objects on  the  screen
                        quickly.








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                                                                                        Mouse—An Input Device
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