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(September 2010)| In telecommunication and information theory,
broadcasting refers to a method of transferring a message to all
recipients simultaneously. Broadcasting can be performed as a
high level operation in a program, for example broadcasting
Message Passing Interface, or it may be a low level networking
operation, for example broadcasting on Ethernet. In computer
networking, broadcasting refers to transmitting a packet that
will be received by every device on the network. In practice,
the scope of the broadcast is limited to a broadcast domain.
Broadcast a message is in contrast to unicast addressing in
which a host sends datagrams to another single host identified
by a unique IP address. Not all network technologies support
broadcast addressing; for example, neither X.25 nor frame relay
have broadcast capability, nor is there any form of Internet-
wide broadcast. Broadcasting is largely confined to local area
network (LAN) technologies, m