Sumitradevi, K.A <br/><br/>
Operating systems/ 
K,A.Sumitradevi and N.A.Banashree 
 - Mumbai  SDF  2008 
 - IX, 310P.:  ill.;  24cm. 
<br/><br/><label>ISBN: </label>9788184043402 
<br/><br/><label>LC Class. No.: </label>DUCE QA76.76,O63