This title provides answers at your fingertips. Over the past hundred years, electronic technology - especially digital - has transformed our world. If you're in the electrical trade or studying to be, there's a lot to learn and even more to keep up with. You need a directory of the basics, with chapter summaries, common symbols and abbreviations, a glossary, and more - one that's both study guide and ready reference. Here it is. This title helps you to: understand Ohm's Law, magnetism, insulators, and conductors; review circuit diagrams and principles of parallel circuits; examine electromagnetic induction, capacitance, and resistance; explore fiber optics, LED, laser, and radio wave technologies; delve into digital electronics, including logic circuits and binary code; learn information vital to maintaining and repairing audio systems and televisions; and, enhance your knowledge of computer electronics.