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| interactive videotex (BTX) | |||
| video text (Btx) | |||
| videotex | |||
| interactive videotex | |||
| videotext | |||
| viewdata | |||
| videotex (vtx); two-way videotext; viewdata (interactive transmission of text/graphics at 1200/75 bit/s via the PSTN and vtx modem, vtx decoder for display on domestic TV set, based on BT "Prestel", developed 1979; CEPT Profile 1, Rec. T/CD 06-01, ITU-T (CCITT) T.100, ISO 6937/2); Prestel (BT) | |||
| interactive videography | |||
| Bildschirmtext: 11 短语, 4 学科 |
| 一般 | 1 |
| 信息技术 | 1 |
| 电信 | 2 |
| 通讯 | 7 |