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  2. General-purpose input/output - Wikipedia

    en.wikipedia.org/wiki/General-purpose_input/output

    A GPIO port is a group of GPIO pins (often 8 pins, but it may be less) arranged in a group and controlled as a group. GPIO abilities may include: [2] GPIO pins can be configured to be input or output; GPIO pins can be enabled/disabled; Input values are readable (usually high or low) Output values are writable/readable

  3. Input/output - Wikipedia

    en.wikipedia.org/wiki/Input/output

    The term can also be used as part of an action; to "perform I/O" is to perform an input or output operation. I/O devices are the pieces of hardware used by a human (or other system) to communicate with a computer. For instance, a keyboard or computer mouse is an input device for a computer, while monitors and printers are output devices.

  4. Computer port (hardware) - Wikipedia

    en.wikipedia.org/wiki/Computer_port_(hardware)

    Examples of computer connector sockets on various laptops Ports on the back of the Apple Mac Mini (2005) A computer port is a hardware piece on a computer where an electrical connector can be plugged to link the device to external devices, such as another computer, a peripheral device or network equipment. [1] This is a non-standard term.

  5. Memory-mapped I/O and port-mapped I/O - Wikipedia

    en.wikipedia.org/wiki/Memory-mapped_I/O_and_port...

    Memory-mapped I/O is preferred in IA-32 and x86-64 based architectures because the instructions that perform port-based I/O are limited to one register: EAX, AX, and AL are the only registers that data can be moved into or out of, and either a byte-sized immediate value in the instruction or a value in register DX determines which port is the source or destination port of the transfer.

  6. USB - Wikipedia

    en.wikipedia.org/wiki/USB

    The throughput of each USB port is determined by the slower speed of either the USB port or the USB device connected to the port. High-speed USB 2.0 hubs contain devices called transaction translators that convert between high-speed USB 2.0 buses and full and low speed buses. There may be one translator per hub or per port.

  7. Super I/O - Wikipedia

    en.wikipedia.org/wiki/Super_I/O

    An IrDA Port controller; A game port (not provided by recent super I/O chips because Windows XP is the last Windows OS to natively support game ports, requiring vendors to supply their own drivers for later Windows operating systems) [citation needed] A watchdog timer; A consumer IR receiver; A MIDI port; Some GPIO pins

  8. SGPIO - Wikipedia

    en.wikipedia.org/wiki/SGPIO

    Of the four signals, three are driven by the HBA and one by the backplane. Typically, the HBA is a storage controller located inside a server, desktop, rack or workstation computer that interfaces with hard disk drives or solid-state drives to store and retrieve data. It is considered an extension of the general-purpose input/output (GPIO

  9. PC System Design Guide - Wikipedia

    en.wikipedia.org/wiki/PC_System_Design_Guide

    Serial port: 9-pin D male Video Blue / 661C Analog monitor 15-pin VGA female White: Digital monitor DVI female Yellow / 123C Video out: S-Video: 4-pin mini-DIN Yellow / 123C Video out: Composite video: RCA jack: Audio Pink / 701C Analog microphone audio input (mono or stereo). 3.5 mm TRS Light blue / 284C Analog line level audio input. Lime ...