Barron, D. W.  1935- <br/><br/>
Computer operating systems :  for micros, minis, and mainframes / 
David Barron. 
 - 2nd ed. 
 - London ;  New York :  Chapman & Hall,  1984. 
 - viii, 140 p. :  ill. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems (Computers).
<br/><br/><label>Dewey Class. No.: </label>001.642