CompTIA A+ Core 1 (220-1101) — Question 210

Which of the following handles touch-screen operation on a mobile device?

Answer options

• A. Stylus
• B. Liquid crystal display
• C. Processor
• D. Digitizer

Correct answer: D

Explanation

The correct answer is D, Digitizer, as it is specifically designed to detect touch inputs on a screen. The Stylus (A) is an accessory used to interact with touch screens but does not handle the operation itself. The Liquid crystal display (B) is a type of screen technology and does not manage touch inputs. The Processor (C) is responsible for executing instructions but not for handling touch operations directly.