A pixel is the basic unit used to measure the resolution of a digital image. The word 'pixel' is a contraction of 'picture' and 'element'. A pixel is a single point in a digital image, and it is often described as the smallest unit of information in an image. Pixels are arranged in a grid, and each pixel contains information about its color and brightness. The more pixels there are in an image, the more detailed and high-resolution the image is. Computer screens, digital cameras, and television screens all use pixels to display images.
