This document discusses electronic media and communication. It defines media as any means of transmitting information between a source and receiver, including things like radio, television, and computers. Electronic media refers specifically to media that transmits information electronically, using various devices from radios to computers. The document traces the history of major electronic communication technologies from the telegraph in the 1830s to modern computers and cell phones. It notes that electronic media communication allows participants to communicate remotely through new and adapted technologies.