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  2. Bus (computing) - Wikipedia

    en.wikipedia.org/wiki/Bus_(computing)

    Four PCI Express bus card slots (from top to second from bottom: ×4, ×16, ×1 and ×16), compared to a 32-bit conventional PCI bus card slot (very bottom). In computer architecture, a bus (historically also called a data highway [1] or databus) is a communication system that transfers data between components inside a computer or between computers. [2]

  3. System bus - Wikipedia

    en.wikipedia.org/wiki/System_bus

    A system bus is a single computer bus that connects the major components of a computer system, combining the functions of a data bus to carry information, an address bus to determine where it should be sent or read from, and a control bus to determine its operation. The technique was developed to reduce costs and improve modularity, and ...

  4. Physical address - Wikipedia

    en.wikipedia.org/wiki/Physical_address

    Diagram of relationship between the virtual and physical address spaces. In computing, a physical address (also real address, or binary address), is a memory address that is represented in the form of a binary number on the address bus circuitry in order to enable the data bus to access a particular storage cell of main memory, or a register of memory-mapped I/O device.

  5. Category:Computer buses - Wikipedia

    en.wikipedia.org/wiki/Category:Computer_buses

    This category lists various computer bus standards, which are used to transmit data within and between computer systems and peripherals. ... Address bus; A. ACCESS.bus;

  6. Control bus - Wikipedia

    en.wikipedia.org/wiki/Control_bus

    In computer architecture, a control bus is part of the system bus and is used by CPUs for communicating with other devices within the computer. While the address bus carries the information about the device with which the CPU is communicating and the data bus carries the actual data being processed, the control bus carries commands from the CPU and returns status signals from the devices.

  7. List of computer bus interfaces - Wikipedia

    en.wikipedia.org/wiki/List_of_computer_bus...

    VPX computer bus standard - V -VME and P -PCI and X the extents for both buses standards. VXI: 1987 [13] 160 MByte/s [14] Multivendor standard for automated testing expansion cards. Working group is VXIConsortium.

  8. HyperTransport - Wikipedia

    en.wikipedia.org/wiki/HyperTransport

    HyperTransport supports an autonegotiated bit width, ranging from 2 to 32 bits per link; there are two unidirectional links per HyperTransport bus. With the advent of version 3.1, using full 32-bit links and utilizing the full HyperTransport 3.1 specification's operating frequency, the theoretical transfer rate is 25.6 GB/s (3.2 GHz × 2 ...

  9. Unibus - Wikipedia

    en.wikipedia.org/wiki/Unibus

    The Unibus was the earliest of several computer bus and backplane designs used with PDP-11 and early VAX systems manufactured by the Digital Equipment Corporation (DEC) of Maynard, Massachusetts. The Unibus was developed around 1969 by Gordon Bell and student Harold McFarland while at Carnegie Mellon University .