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Encyclopedia > Flash drive
An SSD in standard 2.5-inch form factor.
An SSD in standard 2.5-inch form factor.

A Flash drive is a storage device that uses flash memory rather than conventional spinning platters to store data. Unlike USB flash drives and memory cards, flash drives tend to physically imitate conventional hard drives in size, shape, and interface so that they may act as a replacement for hard drives. With nothing being mechanically driven in a flash drive, the name may be seen as either a misnomer or as a generalization of the word "drive". Image File history File linksMetadata E-disk_2-5_scsi. ... Image File history File linksMetadata E-disk_2-5_scsi. ... A data storage device is a device for recording (storing) information (data). ... A USB flash drive. ... JumpDrive redirects here. ... Four major types of memory cards (from left to right: CompactFlash, Memory Stick, Secure Digital, and xD. A memory card or flash memory card is a solid-state electronic flash memory data storage device used with digital cameras, handheld and Mobile computers, telephones, music players, video game consoles, and other... Typical hard drives of the mid-1990s. ... Look up Misnomer in Wiktionary, the free dictionary. ...


These products have typically been used as low power, rugged replacements for hard drives in products exposed to harsh conditions. They have also recently started to emerge in small laptops such as the Eee PC and others. Unlike DRAM or SRAM-based solid-state drives, flash drives are inherently non-volatile and do not require battery backup. The Eee PC is an ultra-portable laptop designed by Intel and ASUS, aimed at the consumer market. ... This article refers to both flash and DRAM-based solid state drives. ... Non-Volatile Random Access Memory (NVRAM) is a computer memory chip which will not lose its information when the power is lost. ...


As each individual flash memory cell tend to fail after a few million erase cycles, early flash devices were unsuitable for frequently updated data such as swap files and similar. To address this problem, flash disk vendors introduced wear-leveling techniques that transparently relocate writes to physical locations that have been less utilized. Modern devices also inherently survive more erase cycles.


Another use for flash drives is to run lightweight operating systems designed specifically for turning general-purpose PCs into network appliances comparable to more expensive routers and firewalls. In this situation, a write protected flash drive containing the whole operating system is used to boot the system. A similar system could boot from CD, floppy disk or a traditional hard drive but flash memory is a good choice because of very low power consumption and failure rate. The tower of a personal computer. ... Write protection, (also known as record protection) is a mechanism that prevents erasure of valuable data by the accidental recording or storing of new data. ...


Windows Vista, the latest release of Microsoft Windows, requires the use of a hybrid hard disk for laptops to be certified as "Vista Premium capable" in order to reduce overall power consumption, increase access speed, and extend battery life [1]. It is widely assumed that this trend will increase over time as the cost of flash drives decreases and the performance needs of consumer electronics continue to increase. Windows Vista (pronounced ) is a line of operating systems developed by Microsoft for use on personal computers, including home and business desktops, laptops, Tablet PCs, and media centers. ... Windows redirects here. ...


Notes

  1. ^ [1] [2] [3]

See also

A RAM-Disk, Ramdisk or Ramdrive is a virtual solid state disk that uses a segment of active computer memory, RAM, as secondary storage, a role typically filled by hard drives. ... This article refers to both flash and DRAM-based solid state drives. ... JumpDrive redirects here. ... This article refers to the computer hard disk. ... Typical hard drives of the mid-1990s. ... A USB flash drive. ... Four major types of memory cards (from left to right: CompactFlash, Memory Stick, Secure Digital, and xD. A memory card or flash memory card is a solid-state electronic flash memory data storage device used with digital cameras, handheld and Mobile computers, telephones, music players, video game consoles, and other... A data storage device is a device for recording (storing) information (data). ... Look up digital camera in Wiktionary, the free dictionary. ... User with Treo (PDA with smartphone functionality) Personal digital assistants (PDAs) are handheld computers, but have become much more versatile over the years. ... An ultraportable IBM X31 with 12 screen on an IBM T43 Thin & Light laptop with a 14 screen A laptop computer, or simply laptop (also notebook computer, notebook and notepad) is a small mobile computer, typically weighing 3-12 pounds (around 1. ... The PCMCIA is the Personal Computer Memory Card International Association, an industry trade association that creates standards for notebook computer peripheral devices. ... An ultraportable IBM X31 with 12 screen on an IBM T43 Thin & Light laptop with a 14 screen A laptop computer, or simply laptop (also notebook computer, notebook and notepad) is a small mobile computer, typically weighing 3-12 pounds (around 1. ...

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While OCZ is not the first one to introduce a product that increases the durability and ruggedness of a flash drive, it is their first attempt at a flash drive with some extra resilience.
Two years ago Corsair made a splash in the flash drive market with the launch of their Flash Voyager, a rubber coated drive that is meant to take a beating.
Inside the flash drive is a hardware accelerated engine that always encrypts the data in AES CBC mode before being written to the drive.
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