Digital audio uses digital signals for sound reproduction. This includes analog-to-digital conversion, digital-to-analog conversion, storage, and transmission. In effect, the system commonly referred to as digital is in fact a discrete-time, discrete-level analog of a previous electrical analog. Electronic media are media that use electronics or electromechanical energy for the end user (audience) to access the content. This is in contrast to static media (mainly print media), which are most often created electronically, but don’t require electronics to be accessed by the end user in the printed form. New media has had a profound effect on three of the most essential categories of society in the twenty-first century: economics politics, and the exchange of ideas. Of course, the scope of this article is limited in its ability to name the types of changes that are a product of new media, let alone a sufficient treatment of each category. However, it is important to sketch a brief schematic life of new media in the Information Age. This book encourages readers to think critically about the modern media and its effects on society and also provide them with a thorough understanding of how the media technologies develop, operate, converge and affect our greater society.