Accessing a computer network involves three main steps. The first step is to identify oneself as a USER, which is done by providing a username or USER ID. This is usually done by entering a four-letter code. The second step is to locate the NODE, or the point of connection, to the network. This is also done by entering a four-letter code. The third step is to log in, which is done by entering a five-letter code. Once these steps are completed, the USER can access the computer network.