This book provides comprehensive coverage of the theory content of the core units of the Intermediate 2 Computing course provided by the Scottish Qualifications Authority. Written specifically to match the arrangements documents, the nine mandatory topics within Software Development and Computer Systems (representing 65% of the external examination) are presented in an attractive, full colour textbook. Written in a highly-accessible and engaging style, this book provides an up to date and attractive resource, enabling students to prepare fully for all of the core content areas of the course. Regular sets of Key Points and Questions are provided, as well as a Glossary, to aid knowledge consolidation and understanding. Answers are freely available online at http://www.hoddereducation.co.uk/intcompanswers.