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  2. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection. [2]A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD.

  3. pip (package manager) - Wikipedia

    en.wikipedia.org/wiki/Pip_(package_manager)

    An output of pip install virtualenv. Pip's command-line interface allows the install of Python software packages by issuing a command: pip install some-package-name. Users can also remove the package by issuing a command: pip uninstall some-package-name. pip has a feature to manage full lists of packages and corresponding version numbers ...

  4. Five-qubit error correcting code - Wikipedia

    en.wikipedia.org/wiki/Five-qubit_error...

    In this code, 5 physical qubits are used to encode the logical qubit. [2] With X {\displaystyle X} and Z {\displaystyle Z} being Pauli matrices and I {\displaystyle I} the Identity matrix , this code's generators are X Z Z X I , I X Z Z X , X I X Z Z , Z X I X Z {\displaystyle \langle XZZXI,IXZZX,XIXZZ,ZXIXZ\rangle } .

  5. Picture-in-picture - Wikipedia

    en.wikipedia.org/wiki/Picture-in-picture

    The first PiP was seen on the televised coverage of the 1976 Summer Olympics where a Quantel digital framestore device was used to insert a close-up picture of the Olympic flame during the opening ceremony. In 1978 Sharp introduced its TV in TV "Mr.X" (CT-1804 X) in Japan; the export version began in 1979 as "Dualvision" (17D50).

  6. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    Code 1: A time critical event with response requiring lights and siren. This usually is a known and going fire or a rescue incident. Code 2: Unused within the Country Fire Authority. Code 3: Non-urgent event, such as a previously extinguished fire or community service cases (such as animal rescue or changing of smoke alarm batteries for the ...

  7. Pipe marking - Wikipedia

    en.wikipedia.org/wiki/Pipe_marking

    It is typically carried out by marking piping through labels and color codes. Pipe marking helps personnel and fire response teams identify the correct pipes for operational, maintenance or emergency response purposes.

  8. Personal injury protection - Wikipedia

    en.wikipedia.org/wiki/Personal_injury_protection

    Personal injury protection (PIP) is an extension of car insurance available in some U.S. states that covers medical expenses and, in some cases, lost wages and other damages. PIP is sometimes referred to as "no-fault" coverage , because the statutes enacting it are generally known as no-fault laws, and PIP is designed to be paid without regard ...

  9. List of ISO 639 language codes - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_639_language_codes

    Each language is assigned a two-letter (set 1) and three-letter lowercase abbreviation (sets 2–5). [2] Part 1 of the standard, ISO 639-1 defines the two-letter codes, and Part 3 (2007), ISO 639-3 , defines the three-letter codes, aiming to cover all known natural languages , largely superseding the ISO 639-2 three-letter code standard.