Electrical Engineering

Inventions whose working principle is electrical or electronic: generating, sensing, transmitting or displaying an electrical signal. Belongs here: communication and broadcast devices such as the telegraph, telephone, radio, television, radar and loudspeaker; core electronic components such as the integrated circuit, the transistor, the laser, the vacuum tube and the electric motor; and electrically powered household devices such as the incandescent light bulb, the microwave oven, the vacuum cleaner, the washing machine, the toaster, the clothes iron, the dishwasher, the blender and the photocopier, plus the barcode and digital camera as electronic sensing devices and the fax and optical fiber as electronic and photonic communication technology. Does not belong here: purely mechanical household devices with no electrical operating principle, grouped under Mechanical Engineering, or computing devices whose primary significance is processing rather than electrical signal handling, grouped under Computer Engineering.