This volume of the Library of Media Design addresses the characteristics and specifications of hardware and software, focusing on their application in the media industry. It also provides an introduction to wired and wireless computer networks. For this library, the topics from the Compendium of Media Design have been restructured, thoroughly revised, and presented in a convenient format. The guiding principles were to adapt to developments in the advertising and media sectors, as well as to consider current framework plans, study regulations, and examination requirements of training and degree programs. The volumes of the Library of Media Design contain numerous practice-oriented tasks with sample solutions and are suitable as teaching and working books in schools and universities, as well as for self-study.