The basic definition of electronics?

[tracym]

Singular in construction : a branch of physics that deals with the emission, behavior, and effects of electrons (as in electron tubes and transistors) and with electronic devices. 2 : electronic components, devices, or equipment.

[joselync]

Electronics is the technology of electrical and electronic equipment, including computer hardware and software, telecommunications devices and systems, radar and navigation equipment, medical electronics, consumer electronics, and industrial electronics. Electronics is a rapidly growing field that has revolutionized many aspects of modern life.