This is a term that can have various meanings. It's possible that it refers most commonly to various technological modes of communication:
It may also refer to how communication is socially organised:
Then it might refer to the style of the communication:
do't know
communication modes: written spoken body language (gestures) mime
the modes of communication used by govt are :-1)radio2)amateur
What do you understand by the term Screen modes?
A mode of communication is a method of communication, a way of communicating. You can communicate by voice, by sign language, by mail, by books, by radio broadcast, by TV broadcast, by periodical, by posters on lamp posts, and of course on the internet, as I am doing even now, as I type, among other modes.
introduction to modern modes of communication
introduction of satellite based communication
archaic lol
written communication
Smoke signals & drums
Mobile phone, email,
simplex half-duplex duplex
telephone, telegraph, and tell a woman