Western Digital became the first hard disk drive manufacturer to ship a one terabyte drive. $250 gets you the Scorpio Blue 2.5-inch SATA disk. The 750 gigabyte version is $190.
Features of the Scorpio Blue line include WhisperDrive technology, which WD says makes the drive operate more quietly; ShockGuard, a combination of firmware and hardware that improves shock tolerance; and SecurePark, which securely parks the drive’s recording heads off the disk surface during spin up, spin down and wien the drive is off.
That’s a terabyte of storage in a Mac notebook. Apple offers up to 500 gigabytes in the MacBook Pro models. For comparison, my desktop Mac has a one terabyte disk drive which still has over 400 gigabytes of unused storage. My first hard disk drive, circa 1983, was 10 megabytes and cost $1,500.