[snerbles]

Should be tebibytes (TiB) for the latter, though binary prefixes don't have much adoption outside of the software world.

http://www.physics.nist.gov/cuu/Units/binary.html

[wlesieutre]

Or inside of the software world, for that matter.

[semi-extrinsic]

Huh? 1024^4 is how Windows defines a terabyte, accordingly that's what most people think a terabyte is. OS X was the first OS to switch to 1000^4 with Snow Leopard (2009). Different Linux system tools use either standard.

[snerbles]

Referring the abbreviation of "TiB" versus "TB" for 1024^4.