Open University M252 <br/><br/>
Computing and computers course : Introduction to operating systems  [Books]. 
Open University. 
 - Milton Keynes  Open University Press  1982 
 - Pages: 42 
<br/><br/><label>ISBN: </label>0335140750 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers.<br/>Operating Systems