The physical basis of electronic devices and their application in analog and digital systems. Diodes, transistors, LEDs, photodetectors, and lasers are described, and their properties are explored.

Electrical receptacles, outlets, and wall sockets accept plugs and provide current to run electrical devices. They are used in a variety of residential, general-purpose, commercial, industrial, ...

Electronic devices are components for controlling the flow of electrical currents for the purpose of information processing and system control. Prominent examples include transistors and diodes.