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hybrid hard disk drive
Last modified: Monday, October 20, 2008 

Abbreviated as HHDD, a hybrid hard disk drive is a large-buffer computer hard drive that uses non-volatile flash memory (also known as NVRAM) to cache data during normal use. Hybrid hard drives uses 128MB (or more) of high speed flash memory, which is embedded directly on the hard drive itself, to serve as a fast cache for booting and saving data. When booting the PC, the operating system loads data from the flash memory first, speeding boot-up times and it also removes the need to quickly spin up the drive, which saves on power consumption as well. HHDs released by both Samsung and Seagate in 2007 are also called ReadyDrive (the name used by Microsoft) and it is a Windows Vista only technology. The first hybrid hard disk drives were 2.5-inch drives for notebooks.

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eWeek: Is Vista Heading for a Flash Nightmare? 
Now is the time for IT managers to get ready for trouble. The source will be found in Windows Vista's "Ready" twins: ReadyBoost and ReadyDrive, flash-memory-based technologies that aim to improve notebook performance and boot-up times.

Webopedia's "Did You Know...?" Section 
Use this Webopedia knowledge section for an in-depth overview of specific technologies and occurrences in the areas of Computer Science, The Internet, and Computer Hardware and Software.

Webopedia's Quick Reference: Microsoft Windows Vista 
For years, computer users heard of a mysterious new operating system from Microsoft, codenamed Longhorn. In 2005, Microsoft officially removed the Longhorn codename and announced the operating System under the official name of Windows Vista.

related categories

Hard Disk Drives

Windows

related terms

boot

buffer

Flash

hard disk drive

hard drive cage

hard drive enclosure

non-volatile memory

NVRAM

operating system

Windows ReadyBoost

Windows Vista


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hybrid hard disk drive Products :


Top Store Offers:
Geeks.com  43.99Seagate Momentus 5400 PSD 160 GB 2.5-inch Hybrid Hard Drive General Features: 160 GB storage capacity 256 MB flash memory 5400 RPM spindle speed 8...
Dell SMB  169.99Enhance the storage capacity of your Dell™ Latitude™ Laptop with the 120 GB 5400 RPM Serial ATA Internal Hard Drive from Dell. Offering data trans...
eBay  143.42
ZoomTek.com  77.40Seagate Momentus PSD 160GB SATA/150 5400RPM 8MB 2.5"" Hybrid Hard Drive w/256MB Onboard Flash Memory
Dell SMB  199.99The 160 GB hard drive from Dell™ offers enough capacity for portable video recording and editing, with lower power consumption. This functionality p...

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