Back in the olden days, a lot of programming used to be done down on the bare metal. I've programmed in both binary and assembler, although the former was already mostly for classroom exercises in the Fortran era. I used to have to read core dumps to debug programs, and had to be able to read and calculate in binary, octal and hex.

But does anyone need to do this anymore? Do you need to keep track of bits, bytes, single and double precision real words? Do people still have to know about nibbles (4 bits, or half a byte), and the difference between integer and double integers?

As much as geekspeak has filtered down into everyday language, I rarely hear any of those terms any more.