Glossary: Mostlyabreviations and acronyms:
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T

T1: An AT&T term fora digital carrier facility used to transmit a DS1 formatteddigital signal at 1.544 megabits
per second.

T3D: A massively parallel computer architecture,using between 32-2048 tightly coupled DECAlpha processors.

T&TS: Technical & Transportation Services;General Services Division of Ford Motor Company, including; Graphics Arts,Technical Publications, Technical Photography, Reprographics, Construction,Trucking, Railroad?

TAR: Tape ARchive

TCG: Teleport Communications Group Inc.; TCG'sfiber optic network encompasses more than 250 communities from coast tocoast, including the metropolitan areas of Baltimore, Boston, Chicago,Cleveland, Dallas, Denver, Detroit, Fort Lauderdale, Hartford, Houston,Indianapolis, Los Angeles, Miami, Milwaukee, New Jersey, New York, Omaha,Phoenix, Portland OR, Pittsburgh, Providence, Salt Lake City, San Diego,San Francisco, Seattle, St. Louis, Washington DC and West Palm Beach.

TCM: Time Compression Multiplexing, (transmissions);Transmission in opposite directions are achieved through time divisionmultiplexing.  The transmission throughput over the channel is fasterthan the data rate.

TCO: Total Cost of Ownership

TCP: Transmission Control Protocol

TCP/IP: Transmission Control Protocol /Internet Protocol

TCS: Technical Computing Strategy, (FordMotor Company)

TDM: Time Division Multiplexing

TDMA: Time-Division Multiple Access; The principleof TDMA is basically simple. Traditionally, voice channels have been createdby dividing the radio spectrum into (ever narrower) frequency RFcarriers (channels), with one conversation occupying one (duplex) channel.This technique is known as FDMA ( frequency divisionmultiple access). TDMA divides the radio carriers into an endlessly repeatedsequence of small time slots (channels). Each conversation occupies justone of these time slots. So instead of just one conversation, each radiocarrier carry a number of conversations at once.

TDR: Time Domain Reflectometer/Reflectometry;a network analysis tool used to send a signal down a wire, and measuringthe 'time' it takes for various reflections to return along the originalsignal path. This allows one to adjudicate the quality of the wire or locatedamage to the wire.

terabyte: 1,099,511,627,776 bytes; 1,024 gigabytes.

TeX: A macro based text formatter written byDonald Knuth

TFLOPS: Tera FLoating point OperationtionsPer Second; 1,000,000,000,000 floating point operations per second

TFP: ? (SGI)

TFTP: Trivial File Transfer Protocol

THT: Token Holding Time, (FDDI)

THz: terahertz equals 1,000,000,000,000 cyclesper second.

TIES: Telecom Information Exchange Services,(ITU)

TIFF: Tagged Image File Format

TLSP: Transport Layer Security Protocol

TLV: Type-Length-Value

TP4: Transport Protocol Class 4, (ISO)

TR: Technical Report

TR: Timing Recovery; An algorithm to derivethe clock from the received signal.

TR: Token Ring

Transfer function: The frequencyresponse of a linear system or a linear channel.

Transit symbol pulse shape:Defined for a baseband line code as a time-domainmask to ensure inter-operability between different equipment vendors.

Transmit power density:The transmit power level at a particular frequency.

Trelliscode modulation: A combination of a specially selected convolutioncode and a bit-to-symbol mapping algorithm for achievingsignificant coding gain with no bandwidth expansion.

TSO: Time Sharing Option, (IBM)




Last Update:12/13/03
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