| 词条 | Community bulletin board |
| 释义 | {{Expert-subject|Technology|date=July 2011}}{{unsourced|date=May 2018}} A community bulletin board (CBB) is a digital signage system that public, educational, and government access cable television providers use as a Barker channel to keep communities up to date of events listings, weather and other news that can be delivered by using digital on-screen graphics. The electronic bulletin board concept is a form of Technological convergence. {{television-stub}} 1 : Television terminology |
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