Representing graphics

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Pixel

A pixel is the smallest possible dot on a computer screen that can have its colour set indepently.

It's a portmanteau, which is a word for two words combinded. 

Pixel is made from: picture (pix) and element (el). 

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Bitmap

A bitmap is a set of bits that represent a graphical image, with each bit (or group of bits) corresponding to a pixel in an image. 

Photos that are taken with digital cameras will be bitmap images. 

  • the extension to the image could be .bmp
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