Which statement best describes a touchscreen?

Which statement best describes a touchscreen?

• A. Requires a separate input device to register touches.
• B. A touchscreen can detect user touch as input and integrates display and input.
• C. It only displays video with no input capability.
• D. It uses infrared that cannot detect direct touch.

Answer: (B)

A touchscreen combines display and input in one surface, so the device not only shows content but also registers your touches as commands. This means you can tap, swipe, or draw directly on the screen and the device interprets those touches as input without needing a separate mouse or keyboard. That dual role of showing information and accepting touch input is what makes this description the best fit. The other statements miss the essential point: one suggests you always need another input device, which isn’t true for touchscreens; another says it only displays video with no input capability, which ignores touch input; and the last implies infrared technology can’t detect direct touch, which isn’t accurate for many touchscreen systems that use touch detection rather than just illumination.

A touchscreen combines display and input in one surface, so the device not only shows content but also registers your touches as commands. This means you can tap, swipe, or draw directly on the screen and the device interprets those touches as input without needing a separate mouse or keyboard. That dual role of showing information and accepting touch input is what makes this description the best fit.

The other statements miss the essential point: one suggests you always need another input device, which isn’t true for touchscreens; another says it only displays video with no input capability, which ignores touch input; and the last implies infrared technology can’t detect direct touch, which isn’t accurate for many touchscreen systems that use touch detection rather than just illumination.