What Are The Three Mode Of Receiving Information?

What Are The Three Mode Of Receiving Information? e.g. through radio, cassette players, telephones, audio CDs, GSM, beating of drums, town crying (except the crier is closer) e.t.c. 2. Visual: This is a means of receiving information through prints or pictures alone without sound or voice e.g prints, drawings, computers, printers, telex, fax machines, internet