used for the subnet address. A Subnet Mask is usually represented in dotted-decimal notation, for
example, 255.255.255.0.
Subnet or Subnetwork
- Any network that is a part of a larger IP network and is identified by a
subnet address.
TCP/IP
- Transmission Control Protocol/Internet Protocol. A suite of communication protocols that
are used by computers or networking devices on the Internet so that they can communicate with
each other. TCP/IP uses several protocols, the two main being TCP and IP.
Telco
- The local telephone company office.
10 Base-T
- Wiring standard used for Ethernet networks that can transmit data at up to 10 Mbps
transmission using baseband unshielded twisted pair cable. Maximum allowable cable length is
100 meters (330 feet).
Twisted pair cable
- A cable that consists of two wires twisted together. This cable is less
expensive than coaxial, whereas it is thinner and can break more easily than a coaxial cable.
Upstream
- Data transfer from the customer’s premises to the telecommunication network at CO.
URL
- Universal Resource Locator — The addressing system that helps the users to locate
websites on the Internet. It precisely tells the name of the server where a site’s files are stored,
the file’s directory path, and its file name.
USB
- Universal Serial Bus — A plug-and-play interface that allows the user to attach a device
without having to add an adapter card and turning off the computer.
VPI
- Virtual Path Identifier — A numerical value assigned by your DSL Service Provider to your
DSL device to ensure proper connection with the DSL equipment at the Telephone Company’s
office.
VCI
- Virtual Channel Identifier — A numerical value assigned by your DSL Service Provider to
your DSL device. VCI goes hand in hand with VPI to ensure connection with your DSL Service
Provider’s equipment.
WAN
- Wide Area Network — A computer network that spans a relatively large geographical
area. Typically, a WAN consists of two or more local-area networks (LANs).
Web browser
- A program used to access the Internet resources available through the World
Wide Web.
Web server
- A host computer that sends Web page to other computers.
World Wide Web
- A vast resource of information stored on computers and servers connected to
the Internet.
xDSL
- Various DSL technologies has been developed and the “x” indicates the type of
technology being implemented.
Glossary
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