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2. USB flash drive - Wikipedia

   en.wikipedia.org/wiki/USB_flash_drive

   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).

3. Flash memory - Wikipedia

   en.wikipedia.org/wiki/Flash_memory

   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 ...

4. Comparison of memory cards - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_memory_cards

   USB flash drive: Various USB 1.1/2.0/3.0/3.1 2000/2001 1 TB+ (not to scale) Universally compatible across most non-mobile computer platforms, their greater size suits them better to file transfer/storage instead of use in portable devices

5. USB drive - Wikipedia

   en.wikipedia.org/wiki/USB_memory_drive

   A USB flash drive or "thumb drive", a USB-connected computer storage using semiconductor non-volatile random-access memory; A USB external drive, a hard drive fitted with a USB interface Secure Digital, a non-volatile memory card format; CompactFlash, a flash memory mass storage device; Memory Stick, a removable flash memory card format

6. CompactFlash - Wikipedia

   en.wikipedia.org/wiki/CompactFlash

   The rated life of the battery was the only reliability issue. CompactFlash cards that use flash memory, like other flash-memory devices, are rated for a limited number of erase/write cycles for any "block." While NOR flash has higher endurance, ranging from 10,000 to 1,000,000, they have not been adapted for memory card usage.

7. Wear leveling - Wikipedia

   en.wikipedia.org/wiki/Wear_leveling

   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. There are several wear leveling mechanisms that provide varying levels of longevity ...