An Introduction To Communication Technology 1. A communication system is any type of communication involving a message, sender, channel, and a receiver. 2. Communication systems have evolved since past systems. Changes include computerization, miniaturization, digestion, and integration. Many people are using home computers as well. The Internet has given people the ability to communicate across the globe with the click of a button. Many things involving communication have changed the world. Like the invention of morse code, the telephone, radio, TV, and more advanced things like the fax, cell-phone, pager, an