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  2. User error - Wikipedia

    en.wikipedia.org/wiki/User_error

    Phrases used by the tech savvy to mean that a problem is caused entirely by the fault of the user include PEBKAC [8] (an acronym for "problem exists between keyboard and chair"), PEBCAK [9] (an alternative, but similar, acronym for "problem exists between chair and keyboard"), POBCAK (a US government/military acronym for "problem occurs between ...

  3. PS/2 port - Wikipedia

    en.wikipedia.org/wiki/PS/2_port

    The bidirectional IBM AT and PS/2 keyboard interface is a development of the unidirectional IBM PC keyboard interface, using the same signal lines but adding capability to send data back to the keyboard from the computer; this explains the asymmetry. [3] The interface has two main signal lines, Data and Clock.

  4. Audio and video interfaces and connectors - Wikipedia

    en.wikipedia.org/wiki/Audio_and_video_interfaces...

    Several generic digital data connection standards are designed to carry audio/video data along with other data and power: USB was designed as a single connector to support all needs, including any generic data, audio/video, power, and more; DisplayLink is its most successful Audio+Video protocol. Until the 3.0 revision, very low data rates ...

  5. List of video connectors - Wikipedia

    en.wikipedia.org/wiki/List_of_video_connectors

    SCART is a European "unified" A/V interface for bi-directional stereo audio, composite video and s-video, and unidirectional RGBS and data. YP B P R is also available in some non-standard set-ups via the RGB pins. S-Video (a.k.a. separate video, split video, super-video, and Y/C) 1979

  6. Keyboard controller (computing) - Wikipedia

    en.wikipedia.org/wiki/Keyboard_controller...

    In computing, a keyboard controller is a device that interfaces a keyboard to a computer. Its main function is to inform the computer when a key is pressed or released. When data from the keyboard arrives, the controller raises an interrupt (a keyboard interrupt ) to allow the CPU to handle the input.

  7. KVM switch - Wikipedia

    en.wikipedia.org/wiki/KVM_switch

    Enterprise 1U rack mount KVM showing console and computer ports for DVI and USB (keyboard/mouse) A KVM switch (with KVM being an abbreviation for "keyboard, video, and mouse") is a hardware device that allows a user to control multiple computers from one or more sets of keyboards, video monitors, and mouse. [1]

  8. Media control symbols - Wikipedia

    en.wikipedia.org/wiki/Media_control_symbols

    Playback controls on a CD player. Control symbols on a Sony Betamax Portable.. In digital electronics, analogue electronics and entertainment, the user interface may include media controls, transport controls or player controls, to enact and change or adjust the process of video playback, audio playback, and alike.

  9. USB human interface device class - Wikipedia

    en.wikipedia.org/wiki/USB_human_interface_device...

    The USB human interface device class can be used to describe both device and interface classes. The interface class is used when a USB device can contain more than one function. It is possible, therefore, to have USB devices with two different interfaces at the same time (for example, a USB telephone may use a keypad covered by the HID class ...