hybrid drive

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hybrid drive

(1) An optical disc drive that supports more than one format. See Blu-ray.

(2) A storage drive with a small amount of solid state flash memory (SSD) and a large amount of hard disk. See solid state hybrid drive and Fusion Drive.

(3) A hard drive with a disk cache made of flash memory. If the next set of data called for by the computer is in the cache, the transfer is much faster than reading from the disk. The capacity of the flash cache is a small percentage of the drive's total space.

RAM Caches: DRAM and SRAM
Since the 1990s, hard drives have had a small dynamic RAM (DRAM) cache built in or on the controller. Because DRAM is faster than flash memory, hybrid drives generally use both DRAM and flash memory caches, and they may use static RAM (SRAM) instead of DRAM because SRAM is even faster. See cache, flash memory, SSD, dynamic RAM, static RAM, Robson cache and NV cache.
References in periodicals archive ?
Hybrid Hard Drive (HD) and Hard Disk Drives are typical for gaming PCs.
Weight when equipped with a hybrid hard drive, excluding a touchscreen panel.
“Today, our year-long vision of creating a 5mm thin hybrid hard drive in 2.5'' form factor with increased storage capacity and reduced power consumption at a lower cost for manufacturers has become a reality,” said Dr.
A laptop with a hybrid hard drive could see up to a 20 per cent improvement in the time it takes to boot up and open an application, the alliance said.
WD s prototype drive utilizes the SATA Express PCI-e interface, 4 TB 3.5-inch hybrid hard drive, and up to 128 GB solid state drive to deliver compelling performance and GB-per-dollar solutions for desktop and gaming applications.
The new 15-inch SpectreXT TouchSmart Ultrabook will run on Ivy Bridge processors, and comes in SSD, and hybrid hard drive (conventional plus 32GB SSD) options.
Music lovers will appreciate access to more music, videos and photos on the go with 500GB hybrid hard drive storage in the tablet on the HP Envy x2 15-inch or up to 256 GB of high-performance SSD on the HP Envy x2 13-inch, along with BeatsAudio.
WD's 5mm hybrid hard drives will enable the market's thinnest computers to offer 500GB of capacity, utilising almost 50 per cent less volume compared to current 9.5mm hard drives and at one tenth the cost of similar-capacity SSDs.
5, 2012 (CENS) -- To boost sales, many notebook makers target Ultrabook's retail price reduction by using substitute components as HHD (hybrid hard drives) and fiberglass-metal-mix covers.
Hybrid hard drives should be a big benefit to laptop users because they're designed to extend battery life.
According to WD, its new 5 mm hybrid hard drives will enable the thinnest computers to offer 500 GB of capacity, utilizing almost 50 percent less volume compared to current 9.5 mm hard drives and at one tenth the cost of similar capacity SSDs.
WD 5 mm hybrid hard drives will enable the market s thinnest computers to offer 500 GB of capacity, utilizing almost 50% less volume compared to current 9.5 mm hard drives and at one tenth the cost of similar capacity SSDs.

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