Disk operating system version 3.20 /  
NULL. 
 - xiv,4-118p ;   21cm. 
 - 16bit disk operating system version 3.20,       ; .
 - 16bit disk operating system version 3.20,       ; .
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label> Rs.100.00 (Pb) 
<br/><br/><label>Subjects--Index Terms: </label>COMPUTER OPERATING SYSTEM 
<br/><br/><label>Dewey Class. No.: </label>005.43  /