In the International System of Units (SI):
k: kilo- = *1000, prefix K: kelvin = the unit of thermodynamic temperature
b: bit = the basic unit of information B: byte = a set of adjacent bits (usually, but not necessarily, eight)
https://en.wikipedia.org/wiki/International_System_of_Units
https://en.wikipedia.org/wiki/IEEE_1541-2002
In the International System of Units (SI):
In the IEEE 1541-2002 standard: This thread contains all possible combinations of the above, with unclear intent, and I don't like it at all. It's not that hard to be unambiguous.https://en.wikipedia.org/wiki/International_System_of_Units
https://en.wikipedia.org/wiki/IEEE_1541-2002