Video narration
What makes your phone respond when you tap to search? You type a few words, tap, and results appear. Those words are input: information the computer receives. The tap tells it to begin. But the screen isn't doing everything. Your phone is more than the glass you touch; inside it are physical parts-hardware-that carry out instructions. The screen is where you see the answer, not the whole computer at work. Those instructions are software: directions that tell the hardware what to do. The tap isn't magic. It supplies input for software instructions to guide the hardware. During your search, the hardware follows those instructions to work on the words you entered, then the screen displays the result. The result is output: what the computer gives back to you. So what made your phone respond? Your tap supplies input; hardware runs software instructions, then returns the search result. That's how the computer responds.