Each person is actually use the same computer, the one in the closet, these users access the Internet by logging in to the time-sharing system that provides Internet access, thus, they all share one computer that has a single Internet address.

• 所有用户访问因特网，都要靠进入可以提供对因特网访问的分时系统，因此，这些用户共享只有一个因特网地址的同一台计算机。