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  Alphabet Keys: The alphabet keys on a keyboard consist of the 26 letters from A to Z. They are used to
                 type words, sentences, and other text. These keys are arranged in the QWERTY layout. The Shift and Caps
                 Lock keys help modify letter case while typing.
                Punctuation keys: It includes keys for punctuation marks, such as colon (:), semicolon (;), question mark
                 (?), single quotation marks (‘ ’), and double quotation marks (“ ”).
                Function Keys:  These  keys  are  labelled  from  F1  to  F12.  They  are  used  to  perform  specific  functions
                 depending on the software being used. For example: F1 key is used to get help.
                Control Keys: Keys such as control (Ctrl), Shift, Spacebar, Alt, Caps lock, and Tab, are special control keys
                 that perform special functions depending on when and where they are used.

                Navigation Keys: These keys include the arrow keys (Up, Down, Left, Right), Home, End, Page Up, and
                 Page Down keys. They are used for navigating within documents or interfaces.
                Command Keys: Keys such as Insert, Delete, Backspace, and Enter are command keys. When the Insert key
                 is turned ON, it helps you overwrite characters to the right of the cursor.
                Enter Key: This key is sometimes also labelled as Return key. It is used to send cursor to the next line.
                 Sometimes Enter key is used to execute a command.
                Windows key: Pressing the Windows key on your keyboard activates the Start menu.

                Numeric Keypad: This is a set of keys on the right  side of most keyboards. It includes numbers,
                 mathematical operators, and sometimes a Num Lock key to toggle between numeric input and navigation
                 functions.
                         Notes

                         Pressing the Backspace key deletes a character left to the cursor. While pressing the Delete key removes
                         a character to the right.


              Using a Mouse
              Mouse is an input pointing device that is used to move, select, and open items on the computer
              screen. Following functions can be performed using a mouse:

                Roll Over or Hover: Moving the mouse pointer over an object without clicking, often used to
                 reveal additional information or options like tooltips, dropdown menus, or previews.
                Point and Click: Moving the mouse pointer to a specific location on the screen and then
                 pressing the mouse button to select or interact with an object or element displayed, fundamental for
                 navigating GUIs.

                Drag and Drop: Clicking on an object, holding down the mouse button, moving (dragging) the object to a
                 new location on the screen, and then releasing (dropping) the mouse button to place the object in its new
                 position, commonly used for rearranging items, moving files, resizing windows, or organising content.
                Double-click: Double-clicking involves rapidly clicking the mouse button twice in succession on a specific
                 object or icon. This action is often used to open files, launch applications, or execute commands.

              Shut down

              The steps to shut down a computer are:
              Step 1:  Click on the Start button or press the Windows key on your keyboard.
              Step 2:  Click on the Power icon.

              Step 3:  Select the Shut down option. Wait for your computer to close all programs and turn off automatically.



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