[comp.sys.dec.micro] Mega, Kilo, 64K, 1M

imp@dancer.Solbourne.COM (Warner Losh) (08/24/90)

There are two conventions for "Mega" and "Kilo".  Mega in everything except
computer memory means 1,000,000.  It is an international standard.  This is why
you have Mega-ton missils aimed at the whole world.  In computer memeory, 1M is
1024*1024 (2^20) = 1,048,576.  When it comes to hard disks, however,
there seems
to be two usages for Mega.  One of them is the same way that computer memory is
measured, while the other is how everything else is measured.  Talking with
the hardware types here confirmed that a 100M hard disk will most probably have
on it 10^8 byes of storage.  However, that number can be up to 104,857,600,
however, that is realitively rare.  Smaller hard disks (like the 5Meg or 10Meg
or even the 32Meg) tend to use the compuer memory measures, while larger ones
almost always use the more universal meaning.

Same thing goes for Kilo, but in floppy disks 1K almost always is 1024.

Warner Losh		imp@Solbourne.COM
Me?  I'm the onion rings.