Before the advent of dial-up PPP accounts, most Internet accounts were text-only
UNIX shell accounts, and these accounts are still available from a few ISPs. You run
a terminal-emulation program (a program that pretends that your PC is a computer
terminal) on your PC to connect to an Internet host computer—Windows comes
with HyperTerminal, a good terminal emulation program. Most Internet hosts run
UNIX, a powerful but frequently confusing operating system, and you have to type
UNIX commands to use a UNIX shell account. To send and receive e-mail or
browse the Web, you run text-only programs, such as Pine (the most popular
UNIX e-mail program) and Lynx (the most widely used UNIX web browser).
When you use a UNIX shell account, you don’t see graphics or use a mouse, and
you can’t easily store information on your own computer.
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