T-1   A leased-line connection capable of carrying data at 1,544,000 bits-per-second. At maximum theoretical capacity, a T-1 line could move a megabyte in less than 10 seconds. That is still not fast enough for full-screen, full-motion video, for which you need at least 10,000,000 bits-per-second. T-1 is the fastest speed commonly used to connect networks to the Internet. T-3   A leased-line connection capable of carrying data at 44,736,000 bits-per-second. This is more than enough to do full-screen, full-motion video. TCP/IP   Transmission Control Protocol/Internet Protocol. This suite of protocols defines the Internet. Originally designed for the UNIX operating system, TCP/IP software is now available for every major kind of computer operating system. To be truly on the Internet, your computer must have TCP/IP software. Telnet   The command and program used to login from one Internet site to another. The telnet command/program gets you to the login: prompt of another host. Three-Tier Architecture   A network connection where the application logic runs on a server instead of the client workstation. The application server then communicates with the database server. This relieves the client from data-intensive processing, thereby improving throughput and performance across enterprise-wide networks.