A series of instructions which enable a computer to process information. Soon they will need more. A company that sells access to the Internet. Once you have an account, you dial their number with your modem and then use the Internet. Some providers include software for using the Internet, or discussion areas or libraries.
Prices vary considerably.
An account that gives you access to a computer running Internet software with the UNIX operating system, a command-line interface. Using a UNIX shell account is inexpensive and information is exchanged quickly, but the programs are difficult to learn. The underlying software on the Internet that allows you to log in to a distant computer and run it. Many computer databases are open to the public via telnet. The end point in a mainframe system where the monitor and keyboard are located.