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  2. 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 ...

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    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

  4. PS/2 port - Wikipedia

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

    The USB HID keyboard interface requires that it explicitly handle key rollover, with the full HID keyboard class supporting n-key rollover. However, the USB boot keyboard class (designed to allow the BIOS to easily provide a keyboard in the absence of OS USB HID support) only allows 6-key rollover. Some keyboard peripherals support only the ...

  5. Fix problems signing in to AOL Mail

    help.aol.com/articles/fix-problems-signing-in-to...

    Cookies are little bits of info stored in your browser to allow websites to load quicker. While this usually makes it faster to access sites, this stored info can cause some sites to have loading errors. Clear your browser's cache to reset your browser back to its previous state. Doing this will wipe out all the little unwanted bits of info ...

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  7. TRS-80 Model 100 - Wikipedia

    en.wikipedia.org/wiki/TRS-80_Model_100

    Keyboard: 56 keys, QWERTY layout with full standard spacing, 8 programmable function keys, 4 dedicated command keys, and 4 cursor control keys. These last 16 are tactile "button"-style keys. Almost all keys other than the 16 "button" keys are capable of key rollover (without phantom keys appearing depressed), so multi-key combinations can be used.

  8. Fat-finger error - Wikipedia

    en.wikipedia.org/wiki/Fat-finger_error

    In order to have legal certainty and in order to avoid the situation that courts have to decide ex-post if a trade should be binding or not, erroneous trade rules of exchanges usually exclude civil-law rescission rights.

  9. Keyboard matrix circuit - Wikipedia

    en.wikipedia.org/wiki/Keyboard_matrix_circuit

    A keyboard matrix circuit is a design used in most electronic musical keyboards and computer keyboards in which the key switches are connected by a grid of wires, similar to a diode matrix. For example, 16 wires arranged in 8 rows and 8 columns can connect 64 keys—sufficient for a full five octaves of range (61 notes).