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multicast

   Also found in: Wikipedia, Hutchinson 0.02 sec.

(1) To transmit data to multiple recipients on the network at the same time using one transmission stream to the switches, at which point data are distributed out to the end users on separate lines. Contrast with "unicast," in which there is a separate transmission stream from source to destination for each recipient. When sending large volumes of data, multicast saves considerable bandwidth over unicast. See IP multicast, IGMP and SRM.

(2) In digital television broadcasting, to send multiple standard TV (SDTV) programs in the allotted bandwidth, rather than one high-definition TV (HDTV) program.
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IP Multicast has been hailed as the catalyst for ushering in a new generation of Internet-based services such as video on demand, broadcast video, and collaborative groupware applications.
The Challenge Of Implementing IP Multicast by Lazar, Irwin / Computer Technology Review
Exclusive, New Multicast Technology Dramatically Reduces the Time and Cost of Deployment for PC Manufacturers
Paragon Software Group Launches New Version of Deployment Manager by Business Wire
NASDAQ: ONSM) a leading online service provider of live and on-demand, digital media communications and applications, and Multicast Media Technologies, Inc.
Akamai, Onstream Media and Multicast Join Forces to Offer ... by Business Wire
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