When it comes to marketing and packaging their programs, each operating system handles RA differently. W indows NT comes with the software. And depending on which version of UNIX you use will determine whether you have everything you need. All networks, whether accessible on a remote basis or not, have security risks. Which protocol you should use is a complex issue.
Many large organizations deny modems to individ ual workstations.
Remote Control RC provides full access to a specific computer, as opposed to a network. This host computer is then remotely controlled. All resources normall y available to the host computer now become available to the remote user. When RC products are in use, the user of the host computer is essentially locked out of the machine. RC works well, but the host computer must be on and the host RC software ru nning for a connection to be made.