Encoding is when data is converted to binary form so that it can be processed by a computer.
Images: JPG, GIF, PNG Sound: MP3, Midi
JPG: Small file size, high detail, good quality, compatible with most software
Doesn't support transparency
PNG: Uses lossless compression, alpha channel transparency
Not suitable for large photos with details due to large generated file size
GIF:
256 colours, transparency, lossless compression, suitable for small animations
Oldest format - introduced in 1989, usually quite a large file size
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