Which term is the action that changes the input?

• A. Current
• B. Input
• C. Output
• D. Process

Answer: (D)

The action that changes the input is the process. In any system, input is what you start with and output is what you end up with after applying a series of operations. The process is that set of steps—like cutting, heating, mixing, or assembling—that actually changes the input to produce the output. Current describes the flow of electric charge, not an action on the input. Input and output label the starting and final states, while the process is the transformative action between them. For example, grinding coffee beans (the process) turns the input beans into ground coffee (the output).