How do the parts of a communication
system work together to send and
receive messages?

The basic components of a communication system are information source, input transducer, transmitter, communication channel, receiver, output transducer, and destination.

Explanation:

looked it up hope this helps

the today function returns a valid value without any arguments.

the today function returns the current date based on the computer's date setting and formatted as a date. today takes no parameters, but requires that you use empty parentheses