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  2. Fix problems reading or receiving AOL Mail

    help.aol.com/articles/fix-problems-reading-or...

    Make sure the option "Block All Senders Except Contacts" under "Mail Settings --> Block Senders" is unchecked. If checked, you will not receive messages from anyone not in your contacts. Messages are often delivered right way though very rarely there may be a delay in transit. This is usually due to problems on the mail server, heavy internet ...

  3. Troubleshooting AOL Desktop Gold - AOL Help

    help.aol.com/articles/aol-desktop-troubleshooting

    Desktop Gold shortcut icon is missing. If AOL Desktop Gold shortcut icon is missing, try the solutions listed below. • Right click the AOL Desktop Tray Launcher icon in the System tray. • Open AOL Desktop Gold. if you are having trouble opening it, click Start on the windows toolbar. • Double click on the AOL Desktop application file.

  4. Fix problems with third-party mail applications - AOL Help

    help.aol.com/articles/why-cant-i-access-my-aol...

    1-800-358-4860. Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more. Fix problems with third-party mail applications. If you're having problems accessing AOL Mail through third-party applications, such as Outlook or Thunderbird, try troubleshooting with these suggestions to make sure ...

  5. Chromebook - Wikipedia

    en.wikipedia.org/wiki/Chromebook

    The device's USB port is capable of supporting a keyboard, mouse, Ethernet adapter, or USB storage, but not a printer, as ChromeOS offers no print stack. [120] Adding further hardware outside of the previously mentioned items will likely cause problems with the operating system's "self knowing" security model. [ 121 ]

  6. USB human interface device class - Wikipedia

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

    The USB HID class describes devices used with nearly every modern computer. Many predefined functions exist in the USB HID class. These functions allow hardware manufacturers to design a product to USB HID class specifications and expect it to work with any software that also meets these specifications. The same HID protocol is used unmodified ...

  7. Key rollover - Wikipedia

    en.wikipedia.org/wiki/Key_rollover

    Key rollover is the ability of a computer keyboard to correctly handle several simultaneous keystrokes. A keyboard with n-key rollover ( NKRO) can correctly detect input from each key on the keyboard at the same time, regardless of how many other keys are also being pressed. Keyboards that lack full rollover will register an incorrect keystroke ...

  8. Computer keyboard - Wikipedia

    en.wikipedia.org/wiki/Computer_keyboard

    A computer keyboard is a peripheral input device modeled after the typewriter keyboard [1] [2] which uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. Replacing early punched cards and paper tape technology, interaction via teleprinter -style keyboards have been the main input method for computers since ...

  9. USB communications - Wikipedia

    en.wikipedia.org/wiki/USB_communications

    USB ports and cables are used to connect hardware such as printers, scanners, keyboards, mice, flash drives, external hard drives, joysticks, cameras, monitors, and more to computers of all kinds. USB also supports signaling rates from 1.5 Mbit/s (Low speed) to 80 Gbit/s (USB4 2.0) depending on the version of the standard.