With 15 terabytes of hard disk storage, the Watson system at Rensselaer will store roughly the same amount of information as its Jeopardy!

ENGADGET: Watson heading to college, honing administrator-pranking algorithms

We test each drive with a Micron 433-MHz Celeron system equipped with 64MB of SDRAM, a 10GB hard disk, and a DVD-ROM drive.

CNN: Top 5 CD-rewritable drives

So his firm, SoftWide, devised a kiosk-based system that can store thousands of pieces of software on a hard disk, burning a disk only when a customer wants to buy a particular title.

ECONOMIST: MONITOR

Such a dual storage system combines the advantages of higher speed flash memory with lower storage cost hard disk drives.

FORBES: New Flash Memory Devices Will Lead to 128 GB Consumer Products and More Flash in Computer Systems

If you're already running Windows 98 SE or Windows Me on a system with a 933-MHz or faster processor and a large-cache hard disk, Microsoft recommends you check with your PC vendor about availability of the patch.

CNN: Data loss threatens fast Windows systems

In addition to a higher storage capacity than past LTO generations, LTO 5 also offers new architecture features such as the LTFS file system that turn magnetic tape into a directly addressable data source, like a hard disk drive.

FORBES: Magnetic Tape Turns 60

Solid-state storage and memory technologies in general use less power than hard disk drives when they are active, and thus there can be power savings if some solid-state storage and memory can be used in a mixed storage technology environment in a way that reduces the spinning time of hard disk drives and thus decreases the power needs of a storage system.

FORBES: Pumping Iron and Keeping Cool

As we approach the general availability of ultrabooks with the Windows 8 operating system it looks like the largest sales for ultra-thin computers will include a hard disk drive as well as flash memory.

FORBES: Digital Storage Needs the Right Stuff