Avionics are the electronic systems used on aircraft. Avionic systems include communications, navigation, the display and management of multiple systems, and the hundreds of systems that are fitted to aircraft to perform individual functions. These can be as simple as a searchlight for a police helicopter or as complicated as the tactical system for an airborne early warning platform.
Radar and other avionics in the nose of a Cessna Citation I/SP
F-105 Thunderchief with avionics laid out
The Airbus A380 glass cockpit featuring pull-out keyboards and two wide computer screens on the sides for pilots
Electronics is a scientific and engineering discipline that studies and applies the principles of physics to design, create, and operate devices that manipulate electrons and other electrically charged particles. Electronics is a subfield of electrical engineering which uses active devices such as transistors, diodes, and integrated circuits to control and amplify the flow of electric current and to convert it from one form to another, such as from alternating current (AC) to direct current (DC) or from analog signals to digital signals.
Modern surface-mount electronic components on a printed circuit board, with a large integrated circuit at the top
One of the earliest Audion radio receivers, constructed by De Forest in 1914
Various electronic components
Through-hole devices mounted on the circuit board of a mid-1980s home computer. Axial-lead devices are at upper left, while blue radial-lead capacitors are at upper right.