Final answer:
Telephone, IM, and chat are technologies that revolutionized communication by offering cheaper, faster, and better-quality data transmission.
Step-by-step explanation:
Telephone, IM, and chat are technologies that allow communication through voice or text messages over a network. These technologies have revolutionized communication by offering cheaper, faster, and better-quality data transmission. In addition, spin-off technologies like free Internet-based calling and video calling have further enhanced the convenience and accessibility of communication.