The device that converts electrical signals into visual images in computing is known as a display or screen. This can include technologies like LCD (Liquid Crystal Display), LED (Light Emitting Diode), and OLED (Organic Light Emitting Diode). Displays work by interpreting the signals from a computer’s graphics processor and rendering images, text, and video for the user to see. Advances in display technology have significantly enhanced the quality of visual output, leading to sharper images and better color reproduction.