Open University TM222 <br/><br/>
The Digital computer : an inter-faculty second level course : units 14-15. Unit 14 : The PDP 11 computer systems. Unit 15 : Operating systems  [Books]. 
Open University. 
 - Milton Keynes  Open University Press  1983 
<br/><br/><label>ISBN: </label>0335171222  0.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>Electronic digital computers.