FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Touchscreen is mainly used in portable electronic devices like smartphones, tablets, and laptops on which touchscreen acts as a graphical user interface between devices and the user.

Detailed explanation-2: -A touch screen is an electronic display screen that is also an input device. A user interacts with the computer, tablet, smartphone or touch-controlled appliance by using hand gestures and fingertip movements to tap pictures, moving elements or type words on the screen.

Detailed explanation-3: -A keyboard is one of the most important input devices. You can use it to input data into a computer or other electronic devices.

Detailed explanation-4: -A smartphone and tablet use a touchscreen as primary input device and the user’s finger is used as the mouse.

Detailed explanation-5: -Some devices are both input and output devices. The screen of a smartphone or tablet computer is an input AND output device. You input on the screen through touch, and it outputs through graphics.