| T-1, T-2, T-3, T-4 | Table | TAE | Tag | TAL | TAN | Tauschbörse | TB | Tcl | Tcl/Tk | TCP | TCPA | TCP-Header | TCP/IP | TDDSG | TDG | TDM | TDSV | tech-c | Telekommunikation | Telnet | Template | TERENA | Tethering | TFTP | ThickNet/ThickWire | Third-Level Domain | Thumbnail | TKG | TKIP | TKÜV | TKV | TLS | TMG | TNEF | Token | Token Bus | Token Passing | Token Ring | Token Ring Frame | Token-Ring-Verfahren | Topologie | TP | TP | Traceroute | Trimain | Triple-DES | Trojanisches Pferd | TrueDoc | True Internet Color | Truncated BEB | Trustcenter | TTL | Tunneling | Typosquatting