TTL - Transistor - Transistor Logic

TTP - Telephone Twisted Pair

TTP - Thermal - Transfer Printing

TTRT - Target Token Rotation Time

TTS - Transactional Tracking System

TTS - Text - To - Speech

TTSP - Training - Test Set Pairs

TTY - Teletypewriter

TUCOWS - The Ultimate Collection Of Winsock Software

TUI - Text - based User Interface

TUMS - Table Update and Management System

TUT - Tutorial

TV - Turbo Vision

TVF - Table of contents Verbosely from File

TVFS - Toronto Virtual File System

TWAIN - Technology Without An Interesting Name

TWM - Tab Window Manager

TWX - Teletypewriter Exchange Service

TXD - Transmit (tx) Data

TXF - Tax Exchange Format

TXT - Text

TXT2STF - Text to Structured File

TZ - Time Zone