Computer Science · Oct / Nov 2021 · Paper 12 · Question 4

The paragraph explains the operation of different touch screen technologies. Complete the paragraph using the list of terms. Not all terms in the list need to be used. • capacitive • change • circuit • conductive • coordinates • grid • heat • infra-red • insulating • light • manufacture • pressure • resistive In touch screen technology, an electrostatic field is present on the surface of the touch screen. The properties of a user cause a in the field. The of the user’s touch can be calculated. In touch screen technology, a user pushes the top layer of the screen and makes it connect with the bottom layer to complete a . This type of touch screen is cheaper to . [7]

Read automatically from the paper; the printed page above is exact.