Editing Data Compression (section)

== <span style="color: #FFFFFF;">Remembering</span> ==
* '''Data Compression''' — Encoding information using fewer bits than the original representation.
* '''Lossless Compression''' — Reducing file size while allowing for perfect reconstruction of the original data.
* '''Lossy Compression''' — Achieving high compression by permanently removing data that is deemed less important (usually based on human perception).
* '''Redundancy''' — Parts of a message that repeat or can be predicted (e.g., "aaaaa" can be compressed to "5a").
* '''Algorithm''' — The set of rules used to compress and decompress data (e.g., LZW, Huffman, DEFLATE).
* '''Codec''' — (Coder-Decoder) The hardware or software that performs the compression.
* '''Bitrate''' — The amount of data processed per unit of time (e.g., 128 kbps for an MP3).
* '''Run-Length Encoding (RLE)''' — A simple compression method that replaces sequences of identical characters with a count and the character.
* '''Dictionary Encoding''' — Replacing long repeating strings with a short "Index" to a dictionary.
* '''Huffman Coding''' — An algorithm that gives shorter codes to common characters (like 'E') and longer codes to rare ones (like 'Z').
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