Hi,
Retoric question:
From the PICs point of view, what's the difference between "A", 65, $41 and %10000001

Answer:
None, they are all a representation of the same thing.

So WAITing for "A" is the exact same thing as WAITing for 65, or $41, or %10000001 and WAIT("AbC") is the exact same thing as WAIT(65, 98, 67) or WAIT($41, $62, $43).

See, to the PIC it's all just numbers it's we, the humans, who choose to represent those numbers in different ways.

/Henrik.