The term "Pixel" comes from "Picture Element," which is the tiniest and fundamental part of digital images and screens. If you zoom in on any digital image, you'll see tiny colorful square boxes. These squares are called pixels. Together, these pixels create the complete picture, video, or text on your screen. If we think of the screen like a "bed of nails," each nail represents a pixel that, with its unique brightness and color, completes the picture.

Each pixel is made up of three tiny "subpixels" that come together, which are red, green, and blue, known as the RGB color model. These subpixels adjust their brightness (intensity) to create the overall image.