Char datatype and Unicode?

https://learninghub.kx.com/forums/topic/char-datatype-and-unicode

According to this reference

https://code.kx.com/q/kb/unicode/

the `char` datatype can store Unicode characters.

This seems surprising, since elsewhere the size of `char` is specified to be 1 byte.

https://code.kx.com/q/basics/datatypes/

1 byte is not large enough to store all Unicode characters, although it is large enough to store the ASCII/latin1 subset.

Is anyone able to provide clarification on this?