Short detail on pixel and mega pixel by Sumit kumar bhalotia

I am sumit kumar bhalotia explaining you short detail of pixel, megapixel, dot per inches, resolution.

The pixel (a word invented from "picture element") is the basic unit of programmable color on a computer display or in a computer image. A pixel will be larger than the physical size of the screen's dot.

Digital cameras capture images as pixel elements, known as pixels. Simply put, a megapixel is equal to one million pixels. Digital images are made up of thousands of these tiny, tile-like picture elements. The more pixels, the higher the image resolution.

Screen image sharpness is sometimes expressed as dpi (dot per inch). Dot per inch is determined by both the physical screen size and the resolution setting. A given image will have lower resolution - fewer dots per inch - on a larger screen as the same data is spread out over a larger physical area.

In computers, resolution is the number of pixels (individual points of color) contained on a display monitor, expressed in terms of the number of pixels on the horizontal axis and the number on the vertical axis. The sharpness of the image on a display depends on the resolution and the size of the monitor.