Page 24 - Computer Genius Class 01
P. 24

Up
                                                    Arrow Keys

                                                    We use the Arrow  eys to mo e the cursor up  do n

                  Left                    Right     le t and right. These  eys are also  no n as the cursor
                                                    control keys.
                             Down

                  What is a Cursor?


                  A cursor is a small  lin ing line     on the screen.  t sho s the place  here the typed
                  letter or number will appear.

                         Let's REFRESH


                        A mouse is an important part of a computer

                        A mouse is a pointing device that has two or three buttons.
                        The arrow we see on a computer screen is called the mouse pointer.
                         ressing and releasing any  utton o  a mouse is called clic ing.
                         o ing the mouse  hile  eeping the le t  utton pressed is called dragging.

                        Rolling the scroll wheel upwards or downwards is called scrolling.
                          ey oard is used to type on a computer.
                         eys that ha e letters  ritten on them are called alpha et  eys.
                         eys that ha e num ers on them are called num er  eys.

                        There are some  eys that ha e a special role  these are called special  eys.
                         cursor is a small  lin ing line on the screen.





                                                        EXERCISE





                  A.  Tick ( ) the correct option.
                     1.  Which of the following is a computer mouse?





                          (i)                                     (ii)






                        (iii)                                    (iv)





                       22    Computer Genius-I
   19   20   21   22   23   24   25   26   27   28   29