Source : Free On-Line Dictionary of Computing

Remote Access Services
     
         (RAS) A service provided by {Windows NT}
        which allows most of the services which would be available on
        a {network} to be accessed over a {modem} link.  The service
        includes support for {dialup} and {logon}, and then presents
        the same network interface as the normal network drivers
        (albeit slightly slower!).  It is not necessary to run Windows
        NT on the {client} - there are client versions for other
        {Windows} {operating systems}.
     
        [What services?]
     
        (1996-08-14)