SOUND SAMPLING is performed by a small 
  and cheap hardware device called a     
  sampler and this simply converts the   
  Analogue audio data into Digital       
  data suitable for use by the computer. 
                                         
                                         
    ANALOGUE data can vary  n in t ly    
    and is so not define  in precise     
    steps but as a voltage.              
                                         
    DIGITAL data is represented by       
    either ON or OF  , HIGH and LOW in   
    digital elect onics or 1 and 0 in    
    computing. When strings of these 1s  
    and 0s are strung together they can  
    form numbers.