solid state drive

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solid state drive

An all-electronic storage device that is an alternative to a hard disk. Employed in myriad products, including mobile devices, iPods, cameras, laptops and desktop computers, solid state drives (SSDs) are faster than hard disks because there is zero latency (no read/write head to move). They are also more rugged and reliable than hard disks and offer greater protection in hostile environments.

Mostly Flash Memory
The great majority of solid state drives use flash memory chips. Like a hard disk, flash memory is non-volatile and holds its content without power. In contrast, for the absolute fastest speed obtainable, there are solid state drives that use volatile memory chips (DRAM or SRAM) backed up by a hard disk in case of power failure (see nvSRAM and BBSRAM).

Hybrid Drives
Combo drives, such as the Fusion Drive in Mac computers, comprise solid state flash memory and a hard disk (see solid state hybrid drive and Fusion Drive). The hybrid drive is more costly than a hard disk but less than a solid state-only drive. In time, however, there will only be solid state storage, and spinning disk platters will be as obsolete as the punch card (see future memory chips). See disk on module and garbage collection.


Hard Drive Replacement Kits
This Kingston kit includes everything necessary to replace a desktop computer's hard drive with an SSD. Laptop kits include an external case for holding the old drive while it is cloned to the SSD. (Image courtesy of Kingston Technology Corporation, www.kingston.com)







Less Costly Every Year
At one sixth the storage capacity and three times the price of a hard drive, there is a huge discrepancy in cost per byte between the two storage media. However, in 2014, 500GB at USD $349.99 was considerably less expensive for an SSD than just a few years prior. (Images courtesy of Micro Center, www.microcenter.com)

Less Costly Every Year
At one sixth the storage capacity and three times the price of a hard drive, there is a huge discrepancy in cost per byte between the two storage media. However, in 2014, 500GB at USD $349.99 was considerably less expensive for an SSD than just a few years prior. (Images courtesy of Micro Center, www.microcenter.com)







RAM, Battery and Hard Disk
RAM chips provide the fastest access times. This earlier MegaRAM unit contained 4GB of dynamic RAM and a hard disk. In case of power failure, the battery enabled the RAM to be copied to the disk (see nvSRAM and BBSRAM). (Image courtesy of Imperial Technology, Inc.)







A Plug-In SATA SSD
GIGABYTE's i-RAM accepts 4GB of DIMM modules for fast storage and keeps it powered with a built-in battery charged on the fly. (Image courtesy of GIGA-BYTE Technology Co. Ltd., www.gigabyte.com)







The First SSD
In 1977, this Dataram module tied eight magnetic core circuit boards together to make the first solid state disk. It held a whopping two megabytes. See core storage. (Image courtesy of Dataram Corporation, www.dataram.com)







Early SSD PC Cards
Minuscule today, these SanDisk 40 and 175MB FLASHDISKs added storage for early laptops. Shown here with CompactFlash (upper left) for size comparison, they plugged into a PC Card slot. (Image courtesy of SanDisk Corporation, www.sandisk.com)
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References in periodicals archive ?
Storage is a combination of a PCIe NVMe solid-state drive (of 512GB max capacity) and a 2.5-inch hard drive (of 1TB max capacity).
A Strategic Business Group of LITE-ON Technology Corporation, LITE-ON Storage is a global leader in the design, development and manufacturing of Solid-State Drives (SSDs) for PC Client, Industrial Solutions, Automotive, Enterprise and Cloud Computing.
To help meet rapidly growing data demands and ensure fast, reliable access to critical information, Crystal Group is pairing its high-performance hardware with Intel's new Solid-State Drive Data Center (SSD DC) family for data centers in all sizes and environments, including fixed-site, remote, and mobile applications across aerospace, defense/military, industrial, and commercial markets.
SSD430 solid-state drive is equipped with a DDR3 DRAM cache and a SLC cache to
You might not be aware of the fact that the following three different storage architecture configurations are currently available for desktop and laptop computers: Exclusive use of solid-state drives (SSD), exclusive adoption of traditional hard disk drives (HDD), and combined use of solid-state drives and hard disk drives.
SanDisk Corporation (Nasdaq: SNDK), a provider of flash storage solutions, announced on Tuesday that it has introduced the new SanDisk Z400s solid-state drive.
In addition to its luggage-friendly size, it's a solid-state drive, which means it's not only fast, but also ideal for travel--no moving parts or spinning disks to worry about.
The drive comes in both solid-state drive (SSD) and hard drive (HDD) versions.
Micron is also developing a new line of solid-state drive (SSD) solutions based on these devices and expects to ship SSDs with 16nm Flash in 2014.
TELECOMWORLDWIRE-April 12, 2012-Intel introduces Solid-State Drive 910 Series(C)1994-2012 M2 COMMUNICATIONS http://www.m2.com
Features include an Intel E660T industrial processor, 1 GB DDR2 RAM, 16 GB solid-state drive, and operation in temperatures between -4[degrees]F and 122[degrees]F.
Panasonic Broadcast has unveiled the AG- MSU10 P2 media storage unit, a portable workflow tool that simplifies the process of backing up or aggregating P2 content to a larger removable solid-state drive.

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