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20.4 Chemistry
Vocabulary Words
Question | Answer |
---|---|
electronics | the science of using electric current to process or transmit information |
electronic signal | information sent as patterns in the controlled flow of electrons through a circuit |
analog signal | a smoothly varying signal produced by continuously changing the voltage or current in a circuit |
digital signal | a signal that encodes information as a string of 1's and 0's |
semiconductor | a crystalline solid that conducts electric current only under certain conditions |
diode | a solid-state component with an n-type semiconductor joined to a p-type semiconductor |
transistor | a solid-state component with three layers of semiconductor material, used to turn current on or off or to increase the strength of electronic signals |
integrated circuit | a thin slice of silicon that contains many solid-state components; a microchip |
computer | a programmable device that can store and process information |