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Page 45 - 2620_Birla Open Mind C-1
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    Timeline

                              A keyboard has keys on it which are used to type.

                               Alphabet keys are used to type letters, words and sentences.

                               Number keys are used to type numbers.
                               Spacebar key is used to give a blank space.

                               Enter key starts a new line.

                               Backspace key is used to erase characters to the left of the cursor.

                               Delete key is used to erase characters to the right of the cursor.
                               A mouse helps us point at objects and select things on the monitor.

                               A small arrow moving on the monitor, is called mouse pointer.

                               Single-click, double-click and scroll are mouse actions.
                               Small blinking line on the monitor is known as cursor.

                     A.  Choose the correct option.

                            1.  We use Backspace key to erase letters to the                     of the cursor.

                                     a.  Right                                     b.  Left

                                     c.  Down                                      d.  Up

                            2.  Which of these keys is used to start a new line?

                                     a.  Spacebar                                  b.  Delete

                                     c.  Arrow                                     d.  Enter

                            3.  Pressing the button of a mouse once is called                     .

                                     a.  Typing                                    b.  Single-clicking

                                     c.  Scrolling                                 d.  Double-Clicking

                            4.  Which of these fingers do we use to scroll the mouse?

                                     a.  Middle                                    b.  Index

                                     c.  Ring                                      d.  Thumb

                                                                                           #The Keyboard and the Mouse  43

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