| Abbreviation | Definition |
|---|---|
| TUI | Text-based User Interface |
| TUMS | Tulsa Users of Macintosh Society |
| TUPEE | Tupee is an abbreviation of (2p) Meaning Peter & Paul |
| TVD | True Vertical Depth |
| TVI | Terminal Video Information |
| TW | Text Words |
| TWA | Transaction Work Area |
| TWA | Two- Way Alternate |
| TWAT | Technical Windows Application Tester |
| TWX | TeletypeWriter eXchange service |
| TX | Telex |
| TXA | Task eXchange Area |
| TXB | Tailor-made eXpansion Box |
| TXB | Translater Board |
| TXC | Transmission Complete |
| TXG | Tandem Switchless Gateway |
| TXL | Text to Excel conversion |
| TXL | Tree Transformation Language |
| TXP | Transaction Processing |
| TXQ | Transaction Queue |