Electronics comprises the physics, engineering, technology and applications that deal with the emission, flow and control of electrons in vacuum and matter. The identification of the electron in 1897, along with the invention of the vacuum tube, which could amplify and rectify small electrical signals, inaugurated the field of electronics and the electron age.

Electronics should not be confused with electrics, which is a simpler form, mostly dealing with domestic wiring, fuse-boxes, distribution panels, lighting, heating and domestic appliances like fridges, microwave ovens and washing machines.


Electronics deals with electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes, integrated circuits, optoelectronics, sensors and various passive electrical components, and interconnection technologies. Commonly, electronic devices contain circuitry consisting primarily or exclusively of active semiconductors supplemented with passive elements; such a circuit is described as an electronic circuit.

• Electronic Components like resistors, capacitors, diodes, transistors, etc.
  
  
• Electric Vehicles like cars, vans and trucks. Also electric boats and aircraft.
  
  
• Electrical Power Kilo-watts, Mega-watts, Giga-watts and up.