This book is mainly for teachers and students of Information Technology in high schools in preparation for external examinations in grade 11 or 5th form. It is also for persons who need an introduction to programming, using Pascal. It focuses on identifying basic Pascal principles and applying them to programming scenarios. As a result, a substantial portion of the book is like a manual or a specific guide. Many program examples may be typed into the TPW (Turbo Pascal for Windows) editor and executed.