Which of the following components enables the input on a mobile device’s touch screen?

Which of the following components enables the input on a mobile device’s touch screen?
A . OLED
B . Digitizer
C . Inverter
D . CMOS sensor

View Answer

Answer: B

Explanation:

The digitizer is the component that enables input on a mobile device’s touch screen. It is a transparent layer that sits over the screen and detects the location of touch inputs. OLED (Organic Light Emitting Diode) is a type of display technology. Inverter is a component used in older LCD displays to provide power to the backlight. CMOS (Complementary Metal-Oxide-Semiconductor) sensor is a type of image sensor used in digital cameras and smartphones to capture images. References: CompTIA A+ Certification Exam: Core 1 – Page 177