Vince said:
Because of formating. It takes space.
My 512 registers 488.
Same with a floppy. 1.44 registers as 1.38 and hard drives always
register less than they actually are.
Nope, it has nothing to do with formatting. All hard drive manufacturers
define 1GB as 1,000,000,000 bytes, while the rest of the computer world,
including Windows, defines it as 2 to the 30th power (1,073,741,824) bytes.
So, for example, a 120 billion byte drive is actually a little under 112GB.
Some people point out that the official international standard defines the
"G" of GB as one billion, not 1,073,741,824. Correct though they are, using
the binary value of GB is so well established in the computer world that I
consider using the decimal value of a billion to be deceptive marketing.
The same is true of thumb drives and floppies. A standard floppy, for
example, holds 1.38MB, which is the same as 1.44 million bytes. (The
unformatted size of that floppy is actually 2MB).