An introductory text which covers all the important electronic topic areas within BTEC HNC engineering courses. The fundamental principles of electronic theory are dealt with in a precise manner avoiding unnecessary detail. Deals with the theory of devices and electronic systems and covers both analogue and digital modules of the syllabus. Covers years HI and H2 in one easy reference volume and introduces important new topic areas such as the programming and use of Programmable Logic Devices (PLDs). It is aimed at HNC, HND and first year undergraduates.