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Electronics

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    Electronics Editor's Picks

    • How to Find Green Electronics

      The environmental organization Greenpeace has just released its most recent rating of electronics companies that have the best policies regarding the environment. Companies were scored on several aspects that impact the environment. Greenpeace advocates that "the biggest electronics companies must show leadership in tackling climate... more »

    • Different Types of Electron Microscopes

      Electron microscopy utilizes a focused beam of electrons to create high-resolution images of a target specimen. Whereas light microscopes are restricted in their magnification by the wavelength of photons, electron microscopes are limited by the much smaller wavelength of electrons, thus achieving magnification down to nearly 0.05... more »

    • How to Recycle Circuit Boards

      Electronic circuit boards from computers, DVD players and other home electronics are not biodegradable. If disposed through ordinary means, they'll end up in landfills and add to the burden on the environment. But if they're recycled, they can be separated into their reusable and non-reusable parts. The reusable parts can be... more »

    • How to Draw Electron Dot Diagrams

      Electron dot diagrams, sometimes called Lewis dot diagrams, were first used by Gilbert N. Lewis in 1916. These diagrams are used as a shorthand notation to show the number of valence electrons in an atom. More complicated versions can be used to show the bond between different atoms in a molecule. more »

    • How to Choose Tools for Restoring Vintage Electronics

      Working on vintage electronics is, surprisingly, not much different from working on modern electronics. The circuits of vintage electronics are probably more simplified compared to today’s complex technology, but the tools needed to repair them are pretty much the same. Here is how to choose tools for restoring vintage electronics. more »

    Electronics Quick Guides

    • Jobs in Electronics

      For those who grew up tinkering with computers, audio equipment, and anything else with a...

    • Geared Up to Go

      First-time travelers might think they can just toss a few changes of clothes in a bag and hit...

    • Find a Video Game System

      With so many different systems on the market to choose from, you might not know where to start....

    • Choose the Best Computer Monitor

      What would computers be without monitors? Expensive paperweights. The right monitor for you...

    Electronics Articles

    Wikipedia

    Electronics

    Electronics is a branch of science and technology that deals with the controlled flow of electrons. The ability to control electron flow is usually applied to information handling or device control. Electronics is distinct from electrical science and technology, which deals with the generation, distribution, control and application of electrical power. This distinction started around 1906 with the invention by Lee De Forest of the triode, which made electrical amplification possible with a non-mechanical device. Until 1950 this field was called "radio technology" because its principal application was the design and theory of radio transmitters, receivers and vacuum tubes.

    Most electronic devices today use semiconductor components to perform electron control. The study of semiconductor devices and related technology is considered a branch of physics, whereas the design and construction of electronic circuits to solve practical problems come under electronics engineering. This article focuses on engineering aspects of electronics.

    Electronic devices and components

    An electronic component is any physical entity in an electronic system used to affect the electrons or their associated fields in a desired manner consistent with the intended function of the electronic system. Components are generally intended to be connected together, usually by being soldered to a printed circuit board (PCB), to create an electronic circuit with a particular function (for example an amplifier, radio receiver, or oscillator). Components may be packaged singly or in more complex groups as integrated circuits. Some common electronic components are capacitors, resistors, diodes, transistors, etc. Components are often categorized as active (e.g. transistors and thyristors) or passive (e.g. resistors and capacitors).

    Types of circuits
    Circuits and components can be divided into two groups: analog and digital. A particular device may consist of circuitry th read more at » http://en.wikipedia.org/wiki/Electronics

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