is the E-mail address of the U.S. President.
In the examples that follow we will give details for a typical character-oriented computer. Windowing systems with menus, dialog boxes, and so on will hide many of these details, but they are happening behind the scenes. Also, once you are connected, you may be faced with an old-fashioned command-line system.
<Section 5.1> Electronic Mail (E-mail)
The details of using the mail system depend on your system, but basically it looks like this:
% mail <enter the mail program with the MAIL command, or whatever>
Welcome to Mail, Version 99.3 . . .
mail> send
To: president@whitehouse.gov
Cc: vice.president@whitehouse.gov <or return if you don't want a
carbon sent to anyone>
Subj: I'm on Internet
Type your message. Control-Z to exit
Bill—