- Television: What's on TV?
- A television: She bought a new TV.
tv - Computer Definition
From the Greek tele, meaning far off, and visio, meaning seen, and translating literally as seen far off. A system in which series of still images are communicated across a distance. The TV transmitter scans a view by means of a camera, converts light rays into electrical signals used to modulate a carrier, adds audio converted from acoustical to electrical by a microphone, and adds control signals. The receiver uses the electrical signal to modulate and control a display device and speakers that reconstruct the video and audio signals. Broadcast TV is transmitted over the airwaves. Community antenna television (CATV), more commonly known as cable TV, is transmitted over networks of coaxial cable or hybrid fiber/coax (HFC) networks of coax and optical fiber. Analog TV standards include National Television Standards Committee (NTSC), Phase Alternate Line (PAL), and S
A top-level Internet domain used by organizations that wish to be identified on the Web for television and video services and products. The .tv domain is actually the country code for the Pacific island nation of Tuvalu, which has approximately 12,000 inhabitants. For granting exclusive registration rights to .tv, Tuvalu receives part of the proceeds from registration fees. Several Tries The original arrangement with Tuvalu was conceived by Toronto-based Jason Chapnik in the late 1990s; however, within a couple years, the .tv domain passed to Idealab and then VeriSign. Early .tv domains were sold for very high prices; however, VeriSign ultimately lowered them dramatically. Nevertheless, in 2010, domain warehousing company Sedo auctioned more than a hundred .tv domains for a total sum exceeding $700,000. The auction was held in association with VeriSign, which ensured standard renewal rates would apply when the domains expire. For more information, visit www.verisign.tv. See domain warehousing.