| Abbreviation | Definition |
|---|---|
| TS | Temporary Storage |
| TSA | Tilt Sensor Activation |
| TSC | Telecom Signaling Card |
| TSCC | Techsmith Screen Capture CODEC |
| TSCU | Touch Screen Control Unit |
| TSI | Technical Specifications for Interoperability |
| TSIOA | Temporary Storage Input/Output Area |
| TSMC | Taiwan Semiconductor Manufacturing Company limited |
| TSOPs | Thin small-outline packages |
| TSP | Time Series Processor |
| TSSOP | Thin Shrink Small Outline Package |
| TSV | Telephone Security and 6-way Video module |
| TT | Techno Terminal |
| TT | TeleType |
| TTA | The True Audio (CODEC) |
| TTF | Time To Fail |
| TTFF | Time To First Fix |
| TTL | Transistor Transistor Logic |
| TTY | TeleTYpewriter |
| TU | Terminal Unit |