Bandwidth: The transmission speed or throughput of your connection to the Internet. Measured in Kbps or Mbps (56Kbps, 1.4Mbps for instance). For a detailed discussion of bandwidth, see About Bandwidth.
DNS: (Domain Name System). A DNS server lets you locate computers on a network or the Internet (TCP/IP network) by domain name. The DNS server maintains a database of domain names (host names) and their corresponding IP addresses. PC Pitstop's IP address, 220.127.116.11, corresponds to the DNS name www.pcpitstop.com.
IP address: (Internet Protocol address) The address of a computer attached to a TCP/IP network. Every client and server station must have a unique IP address. Client workstations have either a permanent address or one that is dynamically assigned to them each dial-up session. IP addresses are written as four sets of numbers separated by periods; for example, 18.104.22.168 (PC Pitstop's address).
Router: A device that forwards data packets from one local area network (LAN) or wide area network (WAN) to another. A router sends the packets based on the most expedient route (traffic load, line costs, speed, bad lines, etc.).