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  2. Product key - Wikipedia

    en.wikipedia.org/wiki/Product_key

    A product key, also known as a software key, serial key or activation key, is a specific software-based key for a computer program. It certifies that the copy of the program is original. Product keys consist of a series of numbers and/or letters. This sequence is typically entered by the user during the installation of computer software, and is ...

  3. Serial number - Wikipedia

    en.wikipedia.org/wiki/Serial_number

    A software serial number, otherwise called a product key, is usually not embedded in the software but is assigned to a specific user with a right to use the software. The software will function only if a potential user enters a valid product code. The vast majority of possible codes are rejected by the software.

  4. Microsoft Product Activation - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Product_Activation

    Microsoft Product Activation is a DRM technology used by Microsoft Corporation in several of its computer software programs, most notably its Windows operating system and its Office productivity suite. The procedure enforces compliance with the program's end-user license agreement by transmitting information about both the product key used to ...

  5. Glossary of video game terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_video_game_terms

    See also. 0–9. 1CC. Abbreviation of one-credit completion or one-coin clear. To complete an arcade (or arcade-style) game without using continues. [ 1] 1-up. An object that gives the player an extra life (or attempt) in games where the player has a limited number of chances to complete a game or level. [ 2]

  6. Product activation - Wikipedia

    en.wikipedia.org/wiki/Product_activation

    Product activation is a license validation procedure required by some proprietary software programs. Product activation prevents unlimited free use of copied or replicated software. Unactivated software refuses to fully function until it determines whether it is authorized to fully function. Activation allows the software to stop blocking its ...

  7. Software license - Wikipedia

    en.wikipedia.org/wiki/Software_license

    Software license. Diagram of software under various licenses according to the FSF and their The Free Software Definition: on the left side "free software", on the right side "proprietary software". On both sides, and therefore mostly orthogonal, "free download" ( Freeware ). A software license is a legal instrument governing the use or ...

  8. Digital rights management - Wikipedia

    en.wikipedia.org/wiki/Digital_rights_management

    Digital rights management ( DRM) is the management of legal access to digital content. Various tools or technological protection measures ( TPM ), [ 1] such as access control technologies, can restrict the use of proprietary hardware and copyrighted works. [ 2] DRM technologies govern the use, modification and distribution of copyrighted works ...

  9. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various types, many symbols are needed for ...