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PT Multimédia
NOS, SGPS S.A. is a Portuguese telecommunications and media company who provides mobile and fixed telephony, cable television, satellite television and internet. The company resulted from the merger in 2013 of two of the country's major telecommunications companies: Zon Multimédia (formerly known as PT Multimédia, a spun-off media arm of Portugal Telecom) and Sonae's Optimus Telecommunications. NOS owns premium movie channels TVCine and has a 25% stake in the Sport TV television network. It also operates 4 channels in joint-venture with AMC Networks International Southern Europe. NOS Audiovisuais (formerly ZON Lusomundo) is a home-video and cinema film distributor and operates Nos Cinema, the largest cinema chain of Portugal. History NOS was founded as TVCabo in 1994, and was the third cable operator to be founded in Portugal (the first was the regional Cabo TV Madeirense, which was founded in 1992, followed by Bragatel early on in 1994). The first customer was connected ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications
Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that feasible with the human voice, but with a similar scale of expediency; thus, slow systems (such as postal mail) are excluded from the field. The transmission media in telecommunication have evolved through numerous stages of technology, from beacons and other visual signals (such as smoke signals, semaphore telegraphs, signal flags, and optical heliographs), to electrical cable and electromagnetic radiation, including light. Such transmission paths are often divided into communication channels, which afford the advantages of multiplexing multiple concurrent communication sessions. ''Telecommunication'' is often used in its plural form. Other examples of pre-modern long-distance communication included audio messages, such as coded d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
