Actually, 1 kb is 1000 bits, 1 kib is 1024 bits, 1kB is 1000 bytes, 1 kiB is 1024 bytes, which is what your file manager shows. This is even more confusing than conventional v physical current in schematics.
The problem is, no one abides by any of these standards with any consistency (just ask Western Digital or Seagate). So to say 1kb *is* 1000 bits is pretty much meaningless. I assure you the use of 64kbps (which is common terminology in Internet radio, whether you or I agree with it) is NOT based on 1000, but 1024. In the real world, it's more important to understand what it *does* means in the current context than what it *should* mean (imo). The latter is a losing battle.
And here I was, adding clarification to my original post knowing that if I didn’t, someone would point out my “error”, and what happens? I get corrected anyway!