pixel : Java Glossary

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pixel
If you look at the Windows Control Panel under Display, (or the equivalent) you can see that you can control the screen resolution, typically something like 640x480, 800x600, 1024x768, 1280 × 1024 or 1920x1200. The image on your screen in made up of rows and columns of tiny coloured dots called pixels. The number 1280 × 1024 means the image is 1280 columns of dots wide by 1024 rows of dots high.

In Java, when you compose a program that draws, you do your measuring and layout in pixels.

If you look carefully with a magnifying glass at the CRT (Cathode Ray Tube) or LCD (Liquid Crystal Display) screen, you will see even tinier red, green and blue dots or bars that make up each pixel. The size of these dots is called the dot pitch. The smaller they are, the smaller the pixels can be and the higher the potential resolution you can display on the monitor.

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