Broadcast messages are messages that an operator sends using the MVS™ SEND command or the TSO/E OPERATOR SEND subcommand. The system operator can send messages of general interest to all users of the system or specific messages to individual users.

When an operator sends a message, a console identifier or the characters OPER appear at the end of the message.

DO NOT USE TERMINALS #4, 5 AND 6 ON 6/30.  THEY ARE
RESERVED FOR DEPARTMENT D04.
***

When you receive a broadcast message on a display terminal, information on which you were working disappears temporarily from the screen and the broadcast message appears. To return to the information on which you were working, wait for the *** to appear and press the Enter key.

Depending on the logon procedure used at your installation, you might see broadcast messages displayed when you first log on. If messages are not displayed when you log on, you can display broadcast messages at your terminal by issuing the LISTBC command.

You, or any other user, can send messages to other users or to the system operator with the SEND command. For more information on how to send messages, see Communicating With Other Users.