The optimal exam preparation based on 100 tasks in technical computer science with detailed solutions. Each chapter is introduced with a link to the video recording of a corresponding lecture at the Karlsruhe Institute of Technology. Furthermore, questions and problems can be discussed in a forum. The topics covered include switching networks and circuits, complementary metal oxide semiconductor (CMOS), binary decision diagram (BDD), number representation, coding and error detection, encryption, computer architecture, programming, assembler, operating systems, file organization, and others.