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  2. System Management Bus - Wikipedia

    en.wikipedia.org/wiki/System_Management_Bus

    The System Management Bus (abbreviated to SMBus or SMB) is a single-ended simple two-wire bus for the purpose of lightweight communication. Most commonly it is found in chipsets of computer motherboards for communication with the power source for ON/OFF instructions. The exact functionality and hardware interfaces vary with vendors.

  3. Power Management Bus - Wikipedia

    en.wikipedia.org/wiki/Power_Management_Bus

    Power Management Bus. The Power Management Bus (PMBus) is a variant of the System Management Bus (SMBus) which is targeted at digital management of power supplies. Like SMBus, it is a relatively slow speed two wire communications protocol based on I²C. Unlike either of those standards, it defines a substantial number of domain-specific ...

  4. Dell OptiPlex - Wikipedia

    en.wikipedia.org/wiki/Dell_OptiPlex

    Dell OptiPlex. OptiPlex (a portmanteau of "optimal" and "-plex") is a line of business-oriented desktop and all-in-one computers made for corporate enterprises, healthcare, the government, and education markets. Initially released in 1993 by Dell, these computers typically contain Intel CPUs, beginning with Celeron and Pentium and currently ...

  5. Host adapter - Wikipedia

    en.wikipedia.org/wiki/Host_adapter

    In computer hardware a host controller, host adapter or host bus adapter ( HBA) connects a computer system bus which acts as the host system to other network and storage devices. [ 1] The terms are primarily used to refer to devices for connecting SCSI, SAS, NVMe, Fibre Channel and SATA devices. [ 2] Devices for connecting to FireWire, USB and ...

  6. 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 ...

  7. Bus (computing) - Wikipedia

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

    Bus (computing) In computer architecture, a bus[ 1] (historically also called data highway[ 2] or databus) is a communication system that transfers data between components inside a computer, or between computers. This expression covers all related hardware components (wire, optical fiber, etc.) and software, including communication protocols.

  8. Synchronous Data Link Control - Wikipedia

    en.wikipedia.org/wiki/Synchronous_Data_Link_Control

    The 8044 controller is still in production by third-party vendors. Other vendors putting hardware support for SDLC (and the slightly different HDLC) into communication controller chips of the 1980s included Zilog, Motorola, and National Semiconductor. As a result, a wide variety of equipment in the 1980s used it and it was very common in the ...

  9. Intel 8080 - Wikipedia

    en.wikipedia.org/wiki/Intel_8080

    The Intel 8080 ( "eighty-eighty") is the second 8-bit microprocessor designed and manufactured by Intel. It first appeared in April 1974 and is an extended and enhanced variant of the earlier 8008 design, although without binary compatibility. [ 3 ] The initial specified clock rate or frequency limit was 2 MHz, with common instructions using 4 ...