U - Definitions

  • U

    UDO (ultra density optical)

    Ultra density optical (UDO) is an optical storage technology that increases capacities by using an extremely focused blue laser to write and read data.

  • Ultra DMA (UDMA or Ultra DMA/33)

    Ultra DMA (UDMA, or, more accurately, Ultra DMA/33) is a protocol for transferring data between a hard disk drive through the computer's data paths (or bus) to the computer's random access memory (RAM).

  • unified storage (multiprotocol storage)

    Unified storage -- sometimes called network unified storage or multiprotocol storage -- is a storage system that runs and manages files and applications from a single device.

  • Universal Disk Format (UDF)

    Universal Disk Format (UDF) is a CD-ROM and DVD file system standard developed as a means of ensuring consistency among data written to various optical media, by facilitating both data interchange and the implementation of the ISO/IEC 13346 standard.

  • USB flash drive

    A USB flash drive -- also known as a stick, thumb or pen drive -- is a plug-and-play portable storage device that uses flash memory and can attach to a keychain.

  • utility storage

    Utility storage is a service model in which a provider makes storage capacity available to an individual, an organization or a business unit on a pay-per-use basis. The utility model is sometimes called metered services or storage on demand.

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