This book contains O Level Computer Studies examination papers from 2011 to 2021 with full worked solutions. The questions, are arranged in yearly format for easy revision and practice. Questions from past examinations have always proved to be the best practice for students. Students are able to apply what they have learnt. This book is also a very useful study guide for students as they can practice the questions, and then check their answers . This book is highly recommended for the students who are preparing for the O Level Computer Studies examination.