Cellular Phones : Different Types Of Mobile Screens & Operating System
3. Touch Screen: Touch screen mobile phones provide keypad with touch screen technology, which simply means that a keypad will be displayed on the screen and you can use it by touching the keys on the screen. Each touch gives a vibrating response.
Earlier touch screen phones provided a tactical keypad, which were used as basic keypad. For entering alphabet you had to touch the key specific number of times.Soon most of the touch screen mobile phones started providing QWERTY keypad.
Some touch screen phones also come with handwriting input. For handwriting input you will have to write in a particular fashion for it to get recognized. Touch screen phones are very useful for people who like fast navigation on their phone. Touch screen phones usually have large screens hence consume more power and require frequent charging.
Some mobile phones have combined different keypad types resulting in following types of phones:
