ACOS-4/AVP error messages (system) DCA22E-6 

 -  Tokyo : NEC  1987 
 - 1089 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ACOS operating systems ACOS-4/AVP
<br/><br/><label>Dewey Class. No.: </label>519.68/12  / NS