This textbook and workbook presents the essential information for working with hardware and software across five chapters: data protection and data security, IT systems, spreadsheet management with Microsoft Excel, word processing with Microsoft Word, and presentation creation with PowerPoint. The book is designed to be easily understandable and appealing, following the proven format of the "Alles auf Lager" series. Each chapter includes an introduction to the respective topic as well as numerous exercises that ensure learning success and reinforce knowledge through advanced tasks. Trainees are empowered to independently plan and execute simple applications using Excel, Word, and PowerPoint.