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  2. CAPTCHA - Wikipedia

    en.wikipedia.org/wiki/Captcha

    CAPTCHA. This CAPTCHA (reCAPTCHA v1) of "smwm" obscures its message from computer interpretation by twisting the letters and adding a slight background color gradient. A CAPTCHA (/ ˈkæp.tʃə / KAP-chə) is a type of challenge–response test used in computing to determine whether the user is human in order to deter bot attacks and spam.

  3. Challenge–response authentication - Wikipedia

    en.wikipedia.org/wiki/Challenge–response...

    Challenge–response authentication. In computer security, challenge-response authentication is a family of protocols in which one party presents a question ("challenge") and another party must provide a valid answer ("response") to be authenticated. [1]

  4. reCAPTCHA - Wikipedia

    en.wikipedia.org/wiki/ReCAPTCHA

    reCAPTCHA Inc.[1] is a CAPTCHA system owned by Google. It enables web hosts to distinguish between human and automated access to websites. The original version asked users to decipher hard-to-read text or match images. Version 2 also asked users to decipher text or match images if the analysis of cookies and canvas rendering suggested the page ...

  5. Huh? We Never Would Have Guessed What 'CAPTCHA ... - AOL

    www.aol.com/lifestyle/huh-never-guessed-captcha...

    For premium support please call: 800-290-4726 more ways to reach us

  6. Turing test - Wikipedia

    en.wikipedia.org/wiki/Turing_test

    The interrogator is limited to using the responses to written questions to make the determination. [1] The Turing test, originally called the imitation game by Alan Turing in 1949, [2] is a test of a machine's ability to exhibit intelligent behaviour equivalent to, or indistinguishable from, that of a human.

  7. Interpersonal communication - Wikipedia

    en.wikipedia.org/wiki/Interpersonal_communication

    Interpersonal communication. Interpersonal communication is an exchange of information between two or more people. [1] It is also an area of research that seeks to understand how humans use verbal and nonverbal cues to accomplish several personal and relational goals. [1]

  8. Models of communication - Wikipedia

    en.wikipedia.org/wiki/Models_of_communication

    General models of communication try to describe all of its forms, including verbal and non-verbal communication as well as visual, auditory, and olfactory forms. [4] In the widest sense, communication is not restricted to humans but happens also among animals and between species.

  9. Source–message–channel–receiver model of communication

    en.wikipedia.org/wiki/Source–message–channel...

    The communication skills required for successful communication are different for source and receiver. For the source, this includes the ability to express oneself or to encode the message in an accessible way. [8] Communication starts with a specific purpose and encoding skills are necessary to express this purpose in the form of a message.