These words appear rather frequently in academic writing on anthropology and linguistics. If you were in grad school studying in these fields it is likely that you would be using most of these words in your own writing. Computer scientists have their own arcane vocabulary, e.g. cryptography, Turing machine, monoid
Consider quotidian (meaning daily), this is an old word that has become more popular in past forty years and has now made its way out of academic writing into ordinary English and appeared about 35 times in HN comments in the past year. It is roughly as common in ordinary English as the word cryptography, but "cryptography" appeared about 49 times in HN comments in the past month.
Google ngram viewer gives a nice comparison of word frequencies in Google's corpus of scanned books. See [1] for a frequency comparison of the some of the words mentioned and the CS words cryptography, Turing machine, Unicode. (Sorry about the link size!)
[1] https://books.google.com/ngrams/graph?content=cryptography%2...