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  2. Keypad - Wikipedia

    en.wikipedia.org/wiki/Keypad

    8 leads can detect many more keys if tri-state multiplexing (Figure 1, right) is used instead, which enables (n-1) × (n/2) keys to be detected with just n I/O lines. 8 I/O can detect 28 individual keys without ambiguity. Issues can occur with some combinations if two keys are pressed simultaneously.

  3. Printer's key - Wikipedia

    en.wikipedia.org/wiki/Printer's_key

    This is how the printer's key may appear in the first print run of a book. In this common example numbers are removed with subsequent printings, so if "1" is seen then the book is the first printing of that edition. If it is the second printing then the "1" is removed, meaning that the lowest number seen will be "2". [3]

  4. Wikipedia : List of all single-letter-single-digit combinations

    en.wikipedia.org/wiki/Wikipedia:List_of_all...

    The list of all single-letter-single-digit combinations contains 520 elements of the form [[{{letter}}{{digit}}]] and [[{{letter}}-{{digit}}]].. In general, any ...

  5. Wikipedia : TLAs from AAA to DZZ

    en.wikipedia.org/wiki/Wikipedia:TLAs_from_AAA_to_DZZ

    This table of three-letter acronyms contains links to all letter-letter-letter combinations from AAA to DZZ, listed in the form [[{{letter}}{{letter}}{{letter}}]].. As specified at Wikipedia:Disambiguation#Combining terms on disambiguation pages, terms which differ only in capitalisation are commonly combined into a single disambiguation page.

  6. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  7. Dot matrix printing - Wikipedia

    en.wikipedia.org/wiki/Dot_matrix_printing

    Dot matrix printers are a type of impact printer that prints using a fixed number of pins or wires [2] [3] and typically use a print head that moves back and forth or in an up-and-down motion on the page and prints by impact, striking an ink-soaked cloth ribbon against the paper.

  8. Two-out-of-five code - Wikipedia

    en.wikipedia.org/wiki/Two-out-of-five_code

    2 of 5 barcode (non-interleaved) POSTNET barcode. A two-out-of-five code is a constant-weight code that provides exactly ten possible combinations of two bits, and is thus used for representing the decimal digits using five bits. [1] Each bit is assigned a weight, such that the set bits sum to the desired value, with an exception for zero.

  9. Here are the Powerball lottery numbers most often on winning ...

    www.aol.com/news/powerball-lottery-numbers-most...

    No. 32 appeared most often — 173 times — among the first five balls drawn in winning combinations, followed by the No. 39 in 163 combinations, according to data.