This second edition of a GCSE computer studies text includes chapters on personal computers and desktop publishing, spreadsheets and their applications, and detailed case studies illustrating how a computer system can revolutionize the working environment. The Data Protection Act is also included, together with project work, an extended section on coursework, advice on how to revise and hints on how to pass examinations. Key words are explained in the text in context and highlighted with bold type, and also explained in an extensive glossary.