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  2. Bus (computing) - Wikipedia

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

    When a processor or DMA-enabled device needs to read or write to a memory location, it specifies that memory location on the address bus (the value to be read or written is sent on the data bus). The width of the address bus determines the amount of memory a system can address. For example, a system with a 32-bit address bus can address 2 32 ...

  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. Inter-process communication - Wikipedia

    en.wikipedia.org/wiki/Inter-process_communication

    A unidirectional data channel using standard input and output. Data written to the write-end of the pipe is buffered by the operating system until it is read from the read-end of the pipe. Two-way communication between processes can be achieved by using two pipes in opposite "directions". All POSIX systems, Windows Named pipe

  5. Memory address register - Wikipedia

    en.wikipedia.org/wiki/Memory_address_register

    When writing to memory, the CPU writes data from MDR to the memory location whose address is stored in MAR. MAR, which is found inside the CPU, goes either to the RAM (random-access memory) or cache. The MAR register is half of a minimal interface between a microprogram and computer storage; the other half is a MDR.

  6. Memory address - Wikipedia

    en.wikipedia.org/wiki/Memory_address

    The efficiency of addressing of memory depends on the bit size of the bus used for addresses – the more bits used, the more addresses are available to the computer. For example, an 8-bit-byte-addressable machine with a 20-bit address bus (e.g. Intel 8086) can address 2 20 (1,048,576) memory locations, or one MiB of memory, while a 32-bit bus ...

  7. Application binary interface - Wikipedia

    en.wikipedia.org/wiki/Application_binary_interface

    In computer software, an application binary interface (ABI) is an interface between two binary program modules. Often, one of these modules is a library or operating system facility, and the other is a program that is being run by a user.

  8. 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.

  9. Mano machine - Wikipedia

    en.wikipedia.org/wiki/Mano_machine

    The Mano machine is a computer theoretically described by M. Morris Mano.It contains a central processing unit, random access memory, and an input-output bus.Its limited instruction set and small address space limit it to use as a microcontroller, but it can easily be expanded to have a 32-bit accumulator register, and 28-bit addressing using a hardware description language like Verilog or ...