Linux - User's Guide

!        .
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    
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     
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        DVD
          :
●  .
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        Battery)  (  .
  
     :
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      .
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   

    .
   
                :
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   .
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   .
●  .
   :
.   .
.   .
.      ,
    .
.  .
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           .
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              .
         .
   
 