Touchscreen technology allows users to interact directly with a display using their fingers or a stylus, eliminating the need for a mouse or keyboard. Found in smartphones, tablets, ATMs, and kiosks, touchscreens respond to taps, swipes, and multi-touch gestures for seamless navigation. There are several types, including resistive, capacitive, and infrared, each offering different levels of sensitivity and durability. Capacitive screens, common in modern devices, detect conductive touch for precise input, while resistive screens rely on pressure, making them ideal for rugged use. Touchscreens enhance accessibility, streamline workflows, and provide intuitive control, revolutionizing industries from retail to healthcare. With advancements like haptic feedback and palm rejection, touchscreens continue to improve responsiveness and user experience in everyday technology.