Identify components on printed circuit board Electronic devices like computers and cell phones are composed of various components that manage and modify current and voltage. Key components include integrated circuits, which are complete electronic circuits etched onto silicon; resistors, which limit current flow; capacitors, which store electric charge temporarily; connectors, which link the circuit board to other parts; transistors, which control current flow between terminals; and diodes, which allow current to flow in only one direction. These components work together to enable the functionality of modern electronics.
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