Written for the University of Cambridge International Examinations' AS and A Level Computing syllabus by experienced authors and a CIE examiner. It is written with clear explanations using diagrams, screenshots and photos, making it accessible for International students. Self-assessment questions in each chapter and answers at the back of the book give students the opportunity to assess their own revision needs. Exam questions at the end of each Module give the students plenty of practice and a chapter devoted to exam preparation will help them get ready. A detailed Glossary allows quick access to key or difficult terms.