Question

A plain text e-mail and the same text entered into a word processing document would be about the same file sizes.

Answer 1

a word processing document not only saves the text but also the formatting, a plain text email only saves the text

Answer 2

formatting takes memory

Answer 3

UnkleRhaukus, Formatting doesn't take memory, it takes space.
All program uses memory, with out memory, your computer wouldn't start up.

Answer 4

space is memory

Answer 5

generally you refer to RAM as memory, which would not hold the data long term. But I'm sure we can agree everyone meant the disk HDD/SSD

Answer 6

* just HDD/SDD, no need for disk