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Today, USB flash drives perform the same data and software storage and transfer role as the floppy disk, often used to transfer files between computers which may be on different networks, in different offices, or owned by different people. This has made USB flash drives a leading form of information system infection.
USB FlashCard is a flash memory card format developed by Lexar, and announced on December 13, 2004. [ 15 ] There is a wide range of existing memory card formats such as SD , xD , and CompactFlash ; the major advantage of USB FlashCard is that the cards are in fact standard USB flash drives . [ 16 ]
It is known for its flash memory products, including memory cards and readers, USB flash drives, solid-state drives, and digital audio players. The company was founded in 1988 as SunDisk Corporation and renamed in 1995 as SanDisk Corporation; [ 2 ] then renamed to SanDisk LLC in 2016 when it was acquired by Western Digital . [ 3 ]
Flash memory is an electronic non-volatile computer memory storage medium that can be electrically erased and reprogrammed. The two main types of flash memory, NOR flash and NAND flash, are named for the NOR and NAND logic gates. Both use the same cell design, consisting of floating-gate MOSFETs. They differ at the circuit level depending on ...
A flash drive (also thumb drive, memory stick, and pen drive/pendrive) [1] [note 1] is a data storage device that includes flash memory with an integrated USB interface. A typical USB drive is removable, rewritable, and smaller than an optical disc , and usually weighs less than 30 g (1 oz).
Wear leveling (also written as wear levelling) is a technique [1] for prolonging the service life of some kinds of erasable computer storage media, such as flash memory, which is used in solid-state drives (SSDs) and USB flash drives, and phase-change memory. Deep ruts from car wheels following the same path.
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An assortment of flash drives Transcend JetFlash from 2014. A flash drive is a portable computer drive that uses flash memory. Flash drives are the larger memory modules consisting of a number of flash chips. A flash chip is used to read the contents of a single cell, but it can write entire block of cells.