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  2. Help:Cite errors/Cite error references missing key - Wikipedia

    en.wikipedia.org/wiki/Help:Cite_errors/Cite...

    If you have read this help page and find something missing or confusing, please discuss it at the main talk page. Please reference this page and the page where you have the problem so we can understand your issues.

  3. ThinkPad X series - Wikipedia

    en.wikipedia.org/wiki/ThinkPad_X_series

    ThinkPad. The ThinkPad X series is a line of laptop computers and convertible tablets produced by Lenovo with less power than its other counterparts. It was initially produced by IBM until 2005. IBM announced the ThinkPad X series (initially the X20) in September 2000 with the intention of providing "workers on the move with a better experience ...

  4. IBM ThinkPad T20 series - Wikipedia

    en.wikipedia.org/wiki/IBM_ThinkPad_T20_series

    The IBM ThinkPad T20 series was a series of notebook computers introduced in May 2000 by IBM as the successor of the 770 series and the first model of the T-series which exists today under Lenovo ownership. Four models were produced, the T20, T21, T22, and T23; [ 1] the series was succeeded in May 2002 by the ThinkPad T30, but was produced ...

  5. ThinkPad P series - Wikipedia

    en.wikipedia.org/wiki/ThinkPad_P_series

    ThinkPad. The ThinkPad P series line of workstation laptops produced by Lenovo and was introduced by the company as a successor to the previous ThinkPad W series. With 15.6" and 17.3" (later 16" only) screens, the ThinkPad P series saw the reintroduction of physically large laptops into the ThinkPad line.

  6. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    The RFC specifies this code should be returned by teapots requested to brew coffee. [18] This HTTP status is used as an Easter egg in some websites, such as Google.com's "I'm a teapot" easter egg. [19] [20] [21] Sometimes, this status code is also used as a response to a blocked request, instead of the more appropriate 403 Forbidden. [22] [23]

  7. Error correction code - Wikipedia

    en.wikipedia.org/wiki/Error_correction_code

    Low-density parity-check (LDPC) codes are a class of highly efficient linear block codes made from many single parity check (SPC) codes. They can provide performance very close to the channel capacity (the theoretical maximum) using an iterated soft-decision decoding approach, at linear time complexity in terms of their block length.

  8. ThinkPad - Wikipedia

    en.wikipedia.org/wiki/ThinkPad

    t. e. ThinkPad is a line of business-oriented laptop computers and tablets, the early models of which were designed, developed and marketed by International Business Machines (IBM) starting in 1992. IBM sold its PC business, including laptops to Lenovo in 2005, and since 2007, all new ThinkPad models have been branded Lenovo instead. [ 5]

  9. Temporary Error 20 - AOL Help

    help.aol.com/articles/temporary-error-20

    Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more.