pixel

A pixel, short for "picture element," is the smallest unit of a digital image or display. It represents a tiny point of color and brightness on a screen or in a digital photo. When many pixels are combined, they form the complete image. The resolution of an image or screen depends on the number of pixels it contains—more pixels generally mean a clearer, more detailed picture. Pixels work together to create the images we see on devices like monitors, smartphones, and digital screens, each contributing its exact color and brightness to produce a cohesive visual representation.