This concise and modern book explores the characteristics, functions, and applications of electronic devices. A winning combination of sound troubleshooting techniques and a systems-oriented approach demonstrates how devices are used in electronics systems today. In addition to covering diodes, oscillators, and thyristors, the book provides comprehensive coverage of power supplies, op amps, filters, and optoelectronics. Hundreds of examples, practice problems, and review questions further reinforce understanding of how electronic devices are used.