Touchscreens

Start with a mind map

The mind map titled Touchscreen is a starting point for studying advantages and disadvantages. Its advantages include ease of use, the lack of a need for a separate mouse, and the way software can change what appears on the screen. Use those points to make a short list, then check the disadvantages in the same map.

The Touchscreens mind map describes a touchscreen as a display that lets someone interact with a computer by touching areas on the screen. It also introduces the idea of a touchscreen working as both an input and an output device.

Look at how touchscreens work

After the overview, open the note titled Touchscreens. It describes an infra-red approach: rays cross the screen, sensors detect when a ray is broken, and a microprocessor calculates the touch location. Follow that sequence as you study, then try explaining it in your own words.

Another Touchscreens mind map covers capacitive technology. It lists sensitivity to light touch, durability and image visibility among its points. Use it alongside the note to look at the different details each resource covers.

Practice and connect

The Touch screens flashcards ask about advantages and disadvantages. Use them after the maps to see which points you can recall without looking. You can also take the quiz, then return to the maps or notes to check ideas you want to study again.

These resources sit within a wider Computing and ICT unit. The map's description of a touchscreen as both an input and an output device gives you a way to connect this topic to that unit. For another practice activity, make your own flashcards from the points you want to remember.