Meaning of abbreviations

[Joaquinv Villar]

Newsgroups: comp.mail.misc
Subject: Meaning of some abbreviations.
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Reply-To: joaquinv at solist.htsa.aha.nl (Joaquinv Villar)
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Organization: AHA-TMF (Technical Institute), Amsterdam, The Netherlands
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When I read the articles I'm very often confrontated with words of wich I dont 
know the meaning.
Can anyone tell me the meaning of the following abbreviations:

 - VRTX
 - RDBMS
 - PHIGS
 - SUN
 - VAX BSD

I'm also looking for information about :

 - HP - UX/System V
 - Oracle
 - X window system
 - The CONVEX assembly language

Please reply to : joaquinv at solist.htsa.aha.nl
Thanks.