1 This wide-field view of the sky around the bright star Alpha Centauri was created from photographic images forming part of the Digitized Sky Survey 2. The star appears so big just because of the scattering of light by the telescope's optics as well as in the photographic emulsion.
Electronics is the science of controlling electrical energy electrically, in which the electrons have a fundamental role. Electronics deals with electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes, integrated circuits, associated passive electrical components, and interconnection technologies.
1. the act of putting in. 2. that which is put in. 3. (Economics) (often plural) a resource required for industrial production, such as capital goods, labour services, raw materials, etc. 4. (Electronics) electronics. a. the signal or current fed into a component or circuit.