[bux93]

CRUD boils down to, Write (for the first time), Read, Write (not the first time) and Write (overwrite the thing or the pointer to it with zeroes or something).

So, really, all computing boils down to a Turing machine. No need to learn any other technology.

[frodation]

All computing boils down to recursive functions. No need to learn any other thechnology than lambda calculus.

[zerodensity]

And all that can be done by the mov instruction no need to learn anything other than mov.