What component in a touchscreen display converts analog touch input into digital instructions?

The component that converts analog touch input into digital instructions in a touchscreen display is the digitizer. This device works by detecting the touch input on the screen, which is generally in an analog form — that is, the position and pressure of the touch. The digitizer translates these analog signals into digital data that the device's operating system can understand and process.

For example, when a user touches the screen, the digitizer registers the coordinates of that touch and sends the corresponding digital instructions to the system to respond appropriately, such as opening an app or registering a gesture.

The other options do not serve this function. An accelerometer measures the acceleration of the device, which is used for detecting orientation or motion but does not interact with touch inputs. Screen resolution refers to the amount of detail the display can show, which doesn’t relate to how touch input is processed. A gyroscope measures rotational movement and helps enhance motion sensing but does not convert touch information into a digital format. Thus, the digitizer is essential for enabling the touchscreen's primary interaction capability.