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EIDX Collection of Acronyms and Abbreviations

gloss-alphabet.jpg (31557 bytes)
NOTE: (n.a.) = Not an Acronym; (obs) = Obsolete


U.S. State Abbreviations | Country Codes (used in Internet Addresses) | Airport Codes

Acronyms and Abbreviations - See also Glossary - T

This letter last updated 01 February 2003

T-1 (n.a.) leased line Internet connection, transmitt rate 1.45 megabits per second
T-3 (n.a.) leased line Internet connection, transmitt rate 45 megabits per second
T/O TurnOver
TA Technical Analysis
TAB Tape Automated Bonding
TAC Tactical Advanced Computer, USN
TAC Transfer At Cost
TAC-4 Tactical Advanced Computer procurement, USN
TACC Tactical Air Control Center
TAG Technical Applications Group?
TAG TWG Administration Group
TAGWAR The Amazing Game Without Any Rules
TAH Take A Hint
TAM Thanks A Million
TAM Total Available Market
TANSTAAF There Ain't No Such Thing As A Free Lunch, from Robert Heinlein who got it from Barry Commoner's "There's No Such Thing..."
TARFU Things Are Really Fouled Up (var. of SNAFU)
TASS Telegrafnoye Agentsvo Sovietsko Soyuza, Soviet news agency
TAT Turn Around Time
TAXI Transparent Asynchronous Transmitter/Receiver Interface
Tb Terabit, c.f. TB
TB Terabyte, c.f. Tb
TB TuBerculosis
TBA To Be Advised/Acknowledged
TBD To Be Decided/Determined
TBH To Be Hired
TBSS Too Bad So Sad
TC Technical Committee, OASIS
TCA Tele-Communications Association
TCA Terms and Conditions Agreement
TCA TriChloroethAne
TCAD Technology Computer-Aided Design
TCBY Taking Care of Business, Y'all
TCBY The Country's Best Yogurt, according to TCBY ;-)
TCE TriChloroethylEne
TCI Tele-Communications, Inc. (
TCO Total Cost of Ownership
TCP Transmission Control Protocol, networking standard
TCP/IP Transmission Control Protocol/Internet Protocol
TCPA Trusted Computing Platform Alliance
TCSEC Trusted Computer System Evaluation Criteria, the Orange Book from NCSC
TD Tone Deaf
TD TouchDown
TDCC Transportation Data Coordinating Committee, pioneers of EDI
TDM Time Division Multiplexing
TDMA Time Division Multiple Access
TDO Timed-pulse Duration Output
TDR Time Domain Reflectometry
TECHROC (n.a.) A Person Overwelmingly Technically Oriented in Everything
TED Turtle Excluder Device (honest--used in shrimp fishing)
TEDIS Trade Electronic Data Interchange Systems, CEC
TEE TransEsophagEal (cardiac probe technology)
TETRA Trans-European Trunked Radio
TFC T600FiberChannel
TFT Thin-Film Transistor
TFTP Trivial FTP
TGIF Thank God It's Friday!
TGRM Task Group for the Reference Model, ECMA TC33
TI Texas Instruments
TI Tiny Income (per an anonymous TI employee)
TIA Telecommunications Industries Association
TIA Thanks In Advance
TIF file extension for TIFF files
TIFF Tagged Image File Format
TIN Taxpayer Identification Number
TIP Terminal Interface Processor, old ARPANET jargon
TIP To Insure Promptness, actual origin of the word 'tip' (gratuity)
TLA Three Letter Acronym
TLAR That Looks About Right (seat of the pants flying, USN)
TLB Translation Lookaside Buffer, to speed up a CPU
TLC Tender Loving Care
TLI Transport Level Interface, AT&T
TLS Transport Layer Security
TM Trademark
TM Transcendental Meditation
TMI Too Much Information
TMN Telecom Management Networks
TMN Telecommunications Management Network
TMS Time Management System
TMS Traffic Management System
TNBB Transnational Broadband Backbone for European Telecommunications
TNT TriNitroToluene
TO See T/O
TOC Table Of Contents
TOD Terms Of Delivery
TOG Tactical Overlay Generator
TOP Technical and Office Protocol, networking standard
TOR Turn On Rate
TPA Third-Party Agreement
TPA Trading Partner Agreement
TPC Third-Party Contract
TPM Third Party Marketing
TPM Total Preventative Maintenance
TPM Transactions Per Minute
TPN Trading Partner Network
TPOM Time Phased Order Method (Amdahl)
TPS Technical Publishing Software, Interleaf
TPT True Positional Tolerances
TQC Total Quality Control
TQM Total Quality Management
TRADACOMS ?? EDI standard developed by ANA; used primarily by UK retail industry
TRAK Technology to Recover Abducted Kids
TRIP Transaction Register Inquiry Program (Ford Motor Co.)
TRL Transistor-Resistor Logic
TRM Technical Reference Manual
TRON The Realtime Operating system Nucleus, project in Tokyo
TRP Transport and Routing Protocol
TRSE Technical Regulations and Standards Engineers
TRW Thompson-Ramo-Wooldridge, now TRW Inc.
TS TroubleShoot
TSA Technical Support Alliance (companies in computer industry)
TSANet Technical Support Alliance Network (
TSE Tokyo Stock Exchange
TSP Telecommunication Service Provider
TSR Terminate and Stay Resident, DOS program type
TSWH That Stuff Will Happen
TT Text Telephone, more commonly known as TTY
TTFN Ta Ta For Now (British Army Slang, from ITMA)
TTL Transistor-Transistor Logic, digital logic component family
TTP Trusted Third Party
TTR Timed Token Rotation, FDDI
TTRT Target Token Rotation Time, FDDI
tty terminal (computer)
TTY Text TeletYpe or Text Telephone a/k/a TT, formerly called TDD)
TUI Talkative User Interface
TV TeleVision
TVA Tennessee Valley Authority
TVAL Token VALue
TVER Token VERsion
TWAICE PROLOG based, developed by Nixdorf, marketed by Logicware
TWG Technical Working Group
tWG the Wollongong Group, providers of networking software
TXN (n.a.) abbreviation for "transaction"
TYVM Thank You Very Much