What is direct brodcast?

Answer 1

Direct - direction - to point something at a specific object

Broadcast - transmit - to send something from one place to someplace else or multiple places at the same time

Direct Broadcast - directional transmission - to send something from one place to specifically someplace else and no where else

Example:

A radio/tv station transmits it's broadcast from its omnidirectional, or in every direct, antenna

A multi-building company transmits it's network connection from one building to another with a directional antenna

The advantage of direction broadcast is you can choose where the signal goes and thus who gets it. Also, it tacks less energy for a direction antenna to send the same information over the same distance and the omnidirectional antenna.