Electronics is the branch of
science,
engineering and
technology dealing with
electrical circuits that involve
active electrical components such as
vacuum tubes,
transistors,
diodes and
integrated circuits, and associated passive interconnection technologies. The
nonlinear behaviour of active components and their ability to control electron flows makes amplification of weak signals possible and is usually applied to
information and
signal processing. Similarly, the ability of electronic devices to act as switches makes digital information processing possible. Interconnection technologies such as
circuit boards, electronics packaging technology, and other varied forms of communication infrastructure complete circuit functionality and transform the mixed components into a working
system.