Full coverage is given of the four core units for HNC, two additional core units required at HND, and Core Specialist Unit 'Quality Systems', common to both certificate and diploma level. Students following the HNC and HND courses will find this book essential reading, because it covers the core material they will follow through during their course of study. Knowledge-check questions and activities included throughout, resulting in a clear and simple text that encourages independent study. Like the syllabus itself, this book is ideal for students progress to HNC / HND from GNVQs, as well as A-Levels and BTEC National, with content designed to meet the requirements of students following General Computing, Software Engineering and Business IT courses.