April 2005

  • akamaize

    For a Web site, to akamaize (pronounced AHK-uh-myez) is to accelerate the delivery of Web files by placing copies on servers closer to the user than the server that delivers the main file for a Web...

  • Signaling System 7 (SS7)

    On the public switched telephone network (PSTN), Signaling System 7 (SS7) is a system that puts the information required to set up and manage telephone calls in a separate network rather than withi...

  • Synchronous Optical Network (SONET)

    SONET is the American National Standards Institute standard for synchronous data transmission on optical media.

  • single mode fiber

    In optical fiber technology, single mode fiber is optical fiber that is designed for the transmission of a single ray or mode of light as a carrier and is used for long-distance signal transmission.

  • i-Mode

    i-Mode is the packet-based service for mobile phones offered by Japan's leader in wireless technology, NTT DoCoMo.

  • frequency-division multiplexing (FDM)

    Frequency-division multiplexing (FDM) is a scheme in which numerous signals are combined for transmission on a single communications line or channel.

  • full-duplex

    Full-duplex data transmission means that data can be transmitted in both directions on a signal carrier at the same time.

  • bit rate

    In digital telecommunication, the bit rate is the number of bits that pass a given point in a telecommunication network in a given amount of time, usually a second.

  • fiberless optics

    Fiberless optics, a term that has been trademarked by Terabeam Networks, is a technology for transmitting large amounts of data on light waves sent through space rather than along an optical fiber ...

  • fiber optic

    Fiber optic (or "optical fiber") refers to the medium and the technology associated with the transmission of information as light impulses along a glass or plastic wire or fiber.

  • htaccess

    .htaccess is the default name for a file that is used to indicate who can or cannot access the contents of a specific file directory from the Internet or an intranet.

  • cycles per second (CPS)

    Cps (cycles per second) is the measure of how frequently an alternating current changes direction.

  • bit stream

    A bit stream is a contiguous sequence of bits, representing a stream of data, transmitted continously over a communications path, serially (one at a time).

  • half-duplex

    Half-duplex data transmission means that data can be transmitted in both directions on a signal carrier, but not at the same time.

  • aggregator

    Like its synonym concentrator, an aggregator is any device that serves multiple other devices or users either with its own capabilities or by forwarding transmissions in a more concentrated and eco...

  • address

    An address can mean the unique location of either ( an Internet server, (2) a specific file (for example, a Web page), or (3) an e-mail user. It is also used to specify the location of data within ...

  • terminal adapter (TA)

    A terminal adapter (TA) is a hardware interface between a computer and an Integrated Services Digital Network line.

  • Advanced Intelligent Network (AIN)

    The Advanced Intelligent Network (AIN) is a telephone network architecture that separates service logic from switching equipment, allowing new services to be added without having to redesign switch...

  • petabit

    A petabit is one quadrillion (1015) binary digits and is used in discussing possible volumes of data traffic per second in a large telecommunications network.

  • encoder

    In digital audio technology, an encoder is a program that converts an audio WAV file into an MP3 file, a highly-compressed sound file that preserves the quality of a CD recording.