A broadcast address is an IP address that is used to target all systems on a specific subnet network instead of single hosts. In other words broadcast address allows information to be sent to all machines on a given subnet rather than to a specific machine.

What are broadcasts used for?

broadcasting, electronic transmission of radio and television signals that are intended for general public reception, as distinguished from private signals that are directed to specific receivers.

Which address is used as broadcast address?

A special definition exists for the IP address 255.255. 255.255. It is the broadcast address of the zero network or 0.0. 0.0, which in Internet Protocol standards stands for this network, i.e. the local network.