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  2. Volatility (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Volatility_(chemistry)

    The most volatile chemical condense at the top of the column while the least volatile chemicals to vaporize condense in the lowest portion. [1] The difference in volatility between water and ethanol has long been used to produce concentrated alcoholic beverages (many of these are referred to as "liquors"). In order to increase the concentration ...

  3. Non-volatile memory - Wikipedia

    en.wikipedia.org/wiki/Non-volatile_memory

    Typically, non-volatile memory costs more, provides lower performance, or has a limited lifetime compared to volatile random access memory. Non-volatile data storage can be categorized into electrically addressed systems, for example, flash memory , and read-only memory ) and mechanically addressed systems ( hard disks , optical discs ...

  4. Volatile memory - Wikipedia

    en.wikipedia.org/wiki/Volatile_memory

    Volatile memory, in contrast to non-volatile memory, is computer memory that requires power to maintain the stored information; it retains its contents while powered on but when the power is interrupted, the stored data is quickly lost. Volatile memory has several uses including as primary storage.

  5. Non-volatile random-access memory - Wikipedia

    en.wikipedia.org/wiki/Non-volatile_random-access...

    Non-volatile random-access memory (NVRAM) is random-access memory that retains data without applied power. This is in contrast to dynamic random-access memory (DRAM) and static random-access memory (SRAM), which both maintain data only for as long as power is applied, or forms of sequential-access memory such as magnetic tape, which cannot be randomly accessed but which retains data ...

  6. Semiconductor memory - Wikipedia

    en.wikipedia.org/wiki/Semiconductor_memory

    Volatile memory loses its stored data when the power to the memory chip is turned off. However it can be faster and less expensive than non-volatile memory. This type is used for the main memory in most computers, since data is stored on the hard disk while the computer is off. Major types are: [7] [8]

  7. 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 .

  8. NVDIMM - Wikipedia

    en.wikipedia.org/wiki/NVDIMM

    A NVDIMM (pronounced "en-vee-dimm") or non-volatile DIMM is a type of persistent random-access memory for computers using widely used DIMM form-factors. Non-volatile memory is memory that retains its contents even when electrical power is removed, for example from an unexpected power loss, system crash, or normal shutdown.

  9. NVM Express - Wikipedia

    en.wikipedia.org/wiki/NVM_Express

    NVM Express (NVMe) or Non-Volatile Memory Host Controller Interface Specification (NVMHCIS) is an open, logical-device interface specification for accessing a computer's non-volatile storage media usually attached via the PCI Express bus.