Trevennor, Alan <br/><br/>
Operating systems  a user-friendly guide 
Alan Trevennor 
 - Wilmslow  Sigma Technical  [1984?] 
 - 167 p.  ill., facsims  22cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems (Computers)
<br/><br/><label>Dewey Class. No.: </label>001.64  / 25