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  2. Data buffer - Wikipedia

    en.wikipedia.org/wiki/Data_buffer

    In computer science, a data buffer (or just buffer) is a region of memory used to store data temporarily while it is being moved from one place to another. Typically, the data is stored in a buffer as it is retrieved from an input device (such as a microphone) or just before it is sent to an output device (such as speakers); however, a buffer may be used when data is moved between processes ...

  3. Direct memory access - Wikipedia

    en.wikipedia.org/wiki/Direct_memory_access

    This second controller was also integrated in a way capable of performing 16-bit transfers when an I/O device is used as the data source and/or destination (as it actually only processes data itself for memory-to-memory transfers, otherwise simply controlling the data flow between other parts of the 16-bit system, making its own data bus width ...

  4. Memory controller - Wikipedia

    en.wikipedia.org/wiki/Memory_controller

    Fully buffered memory systems place a memory buffer device on every memory module (called an FB-DIMM when fully buffered RAM is used), which unlike traditional memory controller devices, use a serial data link to the memory controller instead of the parallel link used in previous RAM designs. This decreases the number of wires necessary to ...

  5. Disk buffer - Wikipedia

    en.wikipedia.org/wiki/Disk_buffer

    In computer storage, a disk buffer (often ambiguously called a disk cache or a cache buffer) is the embedded memory in a hard disk drive (HDD) or solid-state drive (SSD) acting as a buffer between the rest of the computer and the physical hard disk platter or flash memory that is used for storage. [1]

  6. Digital buffer - Wikipedia

    en.wikipedia.org/wiki/Digital_buffer

    The digital buffer is important in data transmission between connected systems. Buffers are used in registers (data storage device) and buses (data transferring device). To connect to a shared bus, a tri-state digital buffer should be used, because it has a high impedance ("inactive" or "disconnected") output state (in addition to logic low and ...

  7. IBM 3270 - Wikipedia

    en.wikipedia.org/wiki/IBM_3270

    3272 local controller; 3274 cluster controller ... unlock the keyboard to allow operator entry, or reset all the Modified Data Tags in the device buffer.

  8. Scratchpad memory - Wikipedia

    en.wikipedia.org/wiki/Scratchpad_memory

    Cell's SPEs are restricted purely to working in their "local-store", relying on DMA for transfers from/to main memory and between local stores, much like a scratchpad. In this regard, additional benefit is derived from the lack of hardware to check and update coherence between multiple caches: the design takes advantage of the assumption that ...

  9. Disk array controller - Wikipedia

    en.wikipedia.org/wiki/Disk_array_controller

    A disk array controller is a device that manages the physical disk drives and presents them to the computer as logical units. It often implements hardware RAID, thus it is sometimes referred to as RAID controller. It also often provides additional disk cache.