Learn in the textbookApplying Virtualization and System Usage/Operation Modes
DefinitionInteractive processing (対話型処理) is a processing mode in which the computer responds each time the user acts, and work moves forward through these repeated exchanges.
ExplanationFor example, typing in a word processor changes the screen at once, and entering a search term shows a list of results. The user looks at what comes back and decides the next action, so human judgment is built into the flow of processing.
AnalogyIt is like asking someone for directions. You ask, you get an answer, and you base your next question on that answer.
Memory hookIn English it is interactive: inter (between each other) plus act, describing a person and a machine taking turns.