Information technology-open systems 

 - 1st ed. 
 - [s.l.] :    [s.n.],    1990. 
 - 33 p. :    ill. ;    30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Technology.
<br/><br/><label>Dewey Class. No.: </label>PF 600 INF