Learn in the textbookThe Five Basic Functions of a Computer
DefinitionInput (入力) is the function that brings data and instructions from people or external devices into the computer.
ExplanationInput is handled by input devices such as keyboards, mice and scanners. The data they bring in travels to main memory and other units over the shared pathway that links the units (the bus).
AnalogyIt is like a shop's front desk, which takes a customer's order and passes it to the workshop in the back.