is obvious -- business and business-like correspondence with partners, access to databases, upgrading software, and so on.
As a rule, many small businesses were initially limited to one dialup connection from one computer. But electronic mail and access into the network
very rapidly became necessary for multiple employees. This made the case to connect an entire office network to the global network. Of course, it
would be inexpedient to buy each computer a separate modem and a separate Internet access account. What's needed is an Internet gateway, a separate
computer through which everyone can share Internet access.