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  2. Input–output memory management unit - Wikipedia

    en.wikipedia.org/wiki/Input–output_memory...

    In computing, an input–output memory management unit (IOMMU) is a memory management unit (MMU) connecting a direct-memory-access–capable (DMA-capable) I/O bus to the main memory. Like a traditional MMU, which translates CPU -visible virtual addresses to physical addresses , the IOMMU maps device-visible virtual addresses (also called device ...

  3. Computer hardware - Wikipedia

    en.wikipedia.org/wiki/Computer_hardware

    Microarchitecture, also known as computer organization, refers to high-level hardware questions such as the design of the CPU, memory, and memory interconnect. [26] Memory hierarchy ensures that the memory quicker to access (and more expensive) is located closer to the CPU, while slower, cheaper memory for large-volume storage is located ...

  4. Computer memory - Wikipedia

    en.wikipedia.org/wiki/Computer_memory

    Improper management of memory is a common cause of bugs and security vulnerabilities, including the following types: A memory leak occurs when a program requests memory from the operating system and never returns the memory when it is done with it. A program with this bug will gradually require more and more memory until the program fails as ...

  5. Glossary of computer hardware terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_computer...

    Also chassis, cabinet, box, tower, enclosure, housing, system unit, or simply case. The enclosure that contains most of the components of a computer, usually excluding the display, keyboard, mouse, and various other peripherals. computer fan An active cooling system forcing airflow inside or around a computer case using a fan to cause air cooling.

  6. Internet - Wikipedia

    en.wikipedia.org/wiki/Internet

    The Internet (or internet) [a] is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) [b] to communicate between networks and devices. It is a network of networks that consists of private , public, academic, business, and government networks of local to global scope, linked by a broad array of ...

  7. Remote direct memory access - Wikipedia

    en.wikipedia.org/wiki/Remote_direct_memory_access

    In computing, remote direct memory access (RDMA) is a direct memory access from the memory of one computer into that of another without involving either one's operating system. This permits high-throughput, low- latency networking, which is especially useful in massively parallel computer clusters .

  8. Heterogeneous System Architecture - Wikipedia

    en.wikipedia.org/wiki/Heterogeneous_System...

    Heterogeneous System Architecture (HSA) is a cross-vendor set of specifications that allow for the integration of central processing units and graphics processors on the same bus, with shared memory and tasks. [1] The HSA is being developed by the HSA Foundation, which includes (among many others) AMD and ARM.

  9. Memory virtualization - Wikipedia

    en.wikipedia.org/wiki/Memory_virtualization

    In this case, the operating system connects to the memory pool, and makes pooled memory available to applications. Cluster implementing memory virtualization. Contributors 1...n contribute memory to the pool. The operating system connects to the memory pool through the page cache system. Applications consume pooled memory via the operating system.