This interactive teaching tool uses powerful multimedia techniques to introduce the basic topics in computing. The author has drawn on colourful images, animations, videos, and music, to create a lively and rich learning experience. The interactive journey starts with graph theory and the steering of satellites, then moves on to the optimization of computer-controlled machines, and finishes with a look at microchips. The focus is on microchip design and mathematical algorithms of discrete mathematics. Throughout, cleverly designed hands-on demonstrations and exercises help the user to grasp the various concepts by doing. The CD-ROM was developed by Arithmeum, a museum of computing in Bonn, Germany, which is associated with the Research Institute for Discrete Mathematics at the University of Bonn. The teaching tool contains a German and English version, and is a must-have for every student of mathematics or computer science who is interested in information technology.