Disk operating system version 3.10 :  user's guide / 

 - 1st ed. 
 - Florida :  IBM,  c1985. 
 - various pages :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>
<br/><br/><br/>english 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Disk operating system.
<br/><br/><label>Dewey Class. No.: </label>001.642/IBD