Currently, hard disk drives offer a more cost-efficient alternative to solid state drives, making them a more suitable option for developing and expanding cloud infrastructures, as capacity matters more than speed.

FORBES: Western Digital Is Worth $60 And Here's Why

Apple, for example, has also frustrated hard-disk drive makers by featuring solid state drives across its line of notebook computers and eliminating spinning disks in the MacBook Air, its thinnest, lightest model.

FORBES: Apple's iPad Behind $4.3 Billion Disk Drive Deal

Hitachi Global Storage Technologies (Hitachi GST) develops advanced hard disk drives, enterprise-class solid state drives, and innovative external storage solutions and services used to store, preserve and manage the world's most valued data.

ENGADGET: Hitachi GST's G-Drive Slim: world's thinnest 2.5-inch external hard drive