An operator can force a task into the waiting entries with the stop command '3456ST' and make it active again with OK: '3456OK'. The OK command can also be used when an operator has made a resource available for a task, although more frequently than not, the MCP will detect that resources have become available, CAUSE the EVENT that processes have been waiting on without further operator intervention. To pass textual information from an operator to a program, the accept command ‘3456AX MORE INFO’ can be used. Programs can pass information to operators using the DISPLAY mechanism, which causes DISPLAY messages to be added to the MSG display.