• direct-attached storage (DAS)

    Direct-attached storage (DAS) is computer storage that is directly attached to one computer or server and is not, without special support, directly accessible to other ones.

  • delta differencing

    Delta differencing is an incremental approach to backup that only backs up blocks that have changed after the first full backup. The differences are recorded in files called deltas.

  • network-attached storage (NAS)

    Network-attached storage (NAS) is a dedicated hard disk storage device that provides file-based data storage services to other devices on the network.

  • auxiliary storage

    Auxiliary storage is all addressable data storage that is not currently in a computer's main storage or memory.

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  • 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). 

  • FRAM (ferroelectric RAM)

    FRAM (ferroelectric RAM) is random access memory that combines the fast read and write access of dynamic RAM (DRAM) - the most common kind of personal computer memory - with the ability to retain data when power is turned off (as do other non-volatil... 

  • dropout

    A dropout is a small loss of data in an audio or video file on tape or disk. 

  • disk cache

    A disk cache is a mechanism for improving the time it takes to read from or write to a hard disk. 

  • Standard MIDI File (SMF)

    The SMF (Standard MIDI File) was developed to allow musicians and audio file developers to transfer their sequenced MIDI data from one software application to another. 

  • WRAM (Window RAM)

    Window RAM (WRAM), unrelated to Microsoft Windows, is very high-performance video RAM that is dual-ported and has about 25% more bandwidth than VRAM but costs less. 

  • PLEDM (phase-state low electron drive memory)

    PLEDM (phase-state low electron drive memory) is a new memory microchip technology that offers vastly greater capacity than memory devices commonly used in the past. 

  • Andrew file system (AFS)

    An Andrew file system (AFS) is a location-independent file system that uses a local cache to reduce the workload and increase the performance of a distributed computing environment. 

  • Sound Designer II (SD2)

    SDII (Sound Designer II, sometimes seen abbreviated as SD2) is a monophonic/stereophonic audio file format, originally developed by Digidesign for their Macintosh-based recording/editing products. 

  • pipeline burst cache

    A pipeline burst cache is a cache or storage area for a computer processor that is designed to be read from or written to in a pipelining succession of four data transfers (or bursts) in which later bursts can start to flow or transfer before the fir...