"I can't figure this out. My email client says I can't attach more than 10 M of data, but then it says I have 16501 K of data attached, and it can't send that. What's a 'M'? What's a 'K'? Why is the second number so big? I only attached a few files!"
I explained to my uncle that "M" stood for Megabyte, and "K" stood for Kilobyte. That a simple calculation to convert "K"s to "M"s was to take the last three digits off the "K"s and you had the size in "M"s, give or take one. That he had 16-17 Megabytes of data attached to his email, and he can only have 10.
