
1) Coding theory
Found on
https://www.crosswordclues.com/clue/systematic-code

In coding theory, a systematic code is any error-correcting code in which the input data is embedded in the encoded output. Conversely, in a non-systematic code the output does not contain the input symbols. Systematic codes have the advantage that the parity data can simply be appended to the source block, and receivers do not need to recover the...
Found on
http://en.wikipedia.org/wiki/Systematic_code
No exact match found.