What is the difference between * and x

Question

For PC calculators you use * instead of x, or / instead of ÷. Why were these two symbols chosen over the other two?

In the standard Windows calculator, even the button uses "/" instead of "÷"

Answer 1

I don't know which came first in this case, but I'd have to believe it came from using $\cdot$ for multiplication in writing and $/$ came from the fraction symbol.