A USB flash drive is a data storage device that includes flash memory with an integrated Universal Serial Bus (USB) interface. USB flash drives are typically removable and rewritable, and physically much smaller than a floppy disk. Most weigh less than 30 g. As of September 2011, drives of up to 256 gigabytes (GB) are available. Storage capacities as large as 2 terabytes are planned, with steady improvements in size and price per capacity expected. Some allow up to 100,000 write/erase cycles, depending on the exact type of memory chip used, and a 10 year shelf storage time.
USB flash drives are often used for the same purposes for which floppy disks or CD-ROMs were used, i.e., for storage, back-up and transfer of computer files. They are smaller, faster, have thousands of times more capacity, and are more durable and reliable because they have no moving parts. Until about 2005, most desktop and laptop computers were supplied with floppy disk drives, but floppy disk drives have been abandoned in favor of USB ports.
USB flash drives use the USB mass storage standard, supported natively by modern operating systems such as Linux, Mac OS X, Windows, and other Unix-like systems, as well as many BIOS boot ROMs. USB drives with USB 2.0 support can store more data and transfer faster than much larger optical disc drives like CD-RW or DVD-RW drives and can be read by many other systems such as the Xbox 360, PlayStation 3, DVD players and in some upcoming mobile smartphones.
A flash drive does not contain any moving parts; the term drive persists because computers read and write flash drive data using the same system commands as for a mechanical disk drive, with the storage appearing to the computer operating system and user interface as just another drive. Flash drives are very robust mechanically.
A flash drive consists of a small printed circuit board carrying the circuit elements and a USB connector, insulated electrically and protected inside a plastic, metal, or rubberized case which can be carried in a pocket or on a key chain, for example. The USB connector may be protected by a removable cap or by retracting into the body of the drive, although it is not likely to be damaged if unprotected. Most flash drives use a standard type-A USB connection allowing plugging into a port on a personal computer, but drives for other interfaces also exist.
USB flash drives draw power from the computer via the USB connection. Some devices combine the functionality of a digital audio player with USB flash storage; they require a battery only when used to play music.
Other articles related to "flash, usb flash drive, flash drive, drive, usb flash":
... Wesleyan Methodism was so well established in Flash during the 18th century that a chapel was built as early as 1784 ... This account suggests that Flash became a centre from which Methodism spread into other neighbouring villages, for example Hollinsclough ...
... Semiconductor corporations have worked to reduce the cost of the components in a flash drive by integrating various flash drive functions in a single chip, thereby reducing the ... Flash drive capacities on the market increase continually ... of 1 GB and smaller, and many have started to phase out 2 GB capacity flash memory ...
... The album was also released on a limited USB flash drive that resembled a piece of a ouija board ... While primarily containing The Bedlam in Goliath in its entirety, the flash drive unlocked a variety of bonus material on the 29th of each month throughout 2008 ...
... can directly install XBMC Media Center from the bootable CD to either a USB flash drive or to an internal hard disk drive as it comes with a complete instant on (Linux-based) embedded ... When installed onto a USB flash drive or internal hard disk drive, XBMCbuntu has the ability to save settings and make updates to XBMC Media Center and the operating-system back onto ...
... Cruzer® USB Flash Drive Cruzer® Blade™ USB Flash Drive Cruzer® Contour™ USB Flash Drive Cruzer® Crossfire™ USB Flash Drive Cruzer® Edge™ USB Flash ...
Famous quotes containing the words drive and/or flash:
“we, outlaws on Gods property,
Fling out imagination beyond the skies,
Wishing a tangible good from the unknown.
And likewise death will drive us from the scene
With the great flowering world unbroken yet,
Which we held in idea, a little handful.”
—Richard Eberhart (b. 1904)
“Tom: All right, boys. Cmon. Why dont you say Im a yellow belly and a big mouth at that?
Shep: You yellow? Who thinks youre yellow? Did you hear what he said? A guy whos got the nerve to marry? Thats more than Flash Gordon ever did.”
—Billy Wilder (b. 1906)