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electronics run Our Lives
From computers to microwaves, from cellophanes to televisions, the modern world and therefore, our lives are run by electronics. Whether you like to read electronic books, watch DVDs or play a video game, electronic components and digital electronics are making it possible. We now depend on electronics to help us drive our cars (like cruise control), purchase goods  and services (like cashier bar code readers) and perform tasks at work (like using a copy machine).
Electronics is the science and technology of electrical circuits. Electronic devices have the ability to act as switches, making  digital information processing possible. In our modern digital age, electronics is the interface between us and the vast array of electrical equipment and devices that we use to work, play and communicate with each other.
Electronics is not “electricity”, although electronics was derived from and is involved with electrical technology. Electrical technology deals with the generation, distribution, switching, storage and conversion of electrical energy to other energy forms (like mechanical energy). Electronics is more involved with the control of that process. For example, electricity runs your microwave oven, providing the power to produce the microwave energy that heats your food. The electronics in your microwave control that process. Equipment like wires, motors, generators, batteries, breakers and transformers are types of electrical equipment but are not electronic components, they are electrical components. The circuit bards that control electrical equipment are the electronics.

Electronics started in the early 1900s when Lee Deforest invented the triode to amplify weak radio signals. Until the 1950s this field was actually called “radio technology” because its primary application was in transmitters, receivers and vacuum tubes, all key elements of radios. today most electronic devices use semiconductor components to perform their functions. The design and construction of electronic circuits is a part of the field of electrical engineering.

About the author

I began college studying electrical engineering. My sophomore year I took my first electronics course. Although I passed the course (with the help of a very smart lab partner), I decided that electricity was “magic” and electrical engineering was not for me. I switched to mechanical engineering, got my degree and stared a career in manufacturing. Ironically, I ended up working in plants that built transformers, regulators, breakers and generators. I could not escape the world of electricity and electronics .



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