emacs(client|server) vs. gnu(client|server)

[Luis O. Silva]

Dear Emacs community,

In my personal Gnu/Linux system with Emacs 21.1.1 I've been
using emacs(client|server) for some time and I'm very happy
with it. Recently I read about gnu(client|server) and, from
the context, I inferred that it works as
emacs(client|server). In the emacs documentation available on
my system there is no information about gnu(client|server)
(well, more precisely, my search failed).

Could anybody, please, clarify me the difference between these
uses of emacs? Is gnu(client|server) a standard package of
emacs? Where can I find information on this?

Thank you very much in advance,
luis


-- 
Luis Octavio Silva P.
St. Petersburg State University.
66/3 Botanicheskaya St., Apt.119/2
Stary Peterhof
St. Petersburg, Russia.