Fill in the Blanks The keyboardOnline version Description of a standard keyboard by LBG lbg 1 Alphanumeric Dedicated Function Cursor numeric control - keys include arrow keys that move the insertion point up , down , right and left , and keys such as 'end' , 'home' , 'page up' and 'page down' , which are used in word processing to move around a long document . - keys represent letters and numbers , as arranged on a typewriter . - keys appear at the top of the keyboard and can be programmed to do special tasks . - keys are used to issue commands or to produce alternative characters , e . g . the 'Crtl' key or the 'Alt' key . - A keypad appears to the right of the main keyboard . The 'Num lock' key is used to switch from numbers to editing keys .