A broadcast address is an address that allows information to be sent to all machines on a given subnet, rather than a specific machine.

A message sent to a broadcast address is typically received by all network-attached hosts, rather than by a specific host.

For example, the broadcast address for the network 192.168.5.0 is 192.168.5.255.

For networks of size /24 or larger, the broadcast address always ends in 255.

Packets sent to the broadcast address, all one bits, are received by all stations on a local area network.

Because the chips are configurable, localized broadcast addresses can be made available.

One interesting thing about Ethernet addressing is the implementation of a broadcast address.

Mr. Giuliani's broadcast address will be the third of his administration.

One of the primary purposes of the broadcast address, is for systems to share service and state information between them.

Now, one variation on that, or a further detail on that, is what's known as the "broadcast address."