Hitachi announced a single hard drive 1TB

On 6/9/2011, Hitachi Global Storage Technologies announced start selling the hard drive with just a single disk with a capacity up to 1TB.

This new technology allows a single manufacturer Hitachi hard drives are thinner in size, is beginning to be used in the hard drive Hitachi Deskstar, Travelstar and CinemaStar with capacities ranging from 250GB to 1TB.
 
Using high-capacity disks, Hitachi said it had produced the hard drive with 3.5-inch size, only 7mm thick 'z-height "targeted for desktop computers, set-top box for TV, to ultra-lightweight laptops.
For markets ultra-thin and light notebook, the hard line of Hitachi Travelstar Z5K500 will provide up to 636 Gb / square inch on a disk rotational speed 5200 rpm (revolutions / minute).
The line drive Deskstar 5K1000.B 7K1000.D 7200 rpm and 5200 rpm Hitachi's new, with SATA 6 Gb / s and 32MB cache buffer, the model is designed for commercial desktop, the sequence set external storage systems and computer gaming.
 
Current new Deskstar drives CoolSpin technology saves up to 15% power on the drive standard, by idling rollers. Technology CoolSpin optimize motor speed to provide the ability to reconcile performance, leverage the power and noise.
The line drives and Hitachi GST CinemaStar 5K1000.B 7K1000.D targeted market for storage devices such as TV and the DVR, support recording, playback, browsing and transfer the content to the device.
The capacities from 250 GB to a single 500 GB account for about 90% of demand drives for consumer electronics devices. Hitachi's new CinemaStar hard line now has double the capacity to store video content.
Brendan Collins, vice president of product marketing of Hitachi GST, said the race of the storage density is continuing, and in the highest volume appeared, reaching 1TB per disk, it Equally important is that it serves a full range of applications and market opportunities across the industry's largest.