ompletely utomated ublic uring test to tell omputers and umans part. From Wikipedia: "The term was coined in 2000 by Luis von Ahn, Manuel Blum, and Nicholas J. Hopper of Carnegie Mellon University, and John Langford of IBM. A common type of captcha requires that the user type the letters of a distorted and/or obscured sequence of letters or digits that appears on the screen. Because the test is administered by a computer, in contrast to the standard Turing test that is administered by a human, a captcha is sometimes described as a reverse Turing test."
a Completely Automatic Public Turing test to tell Computers and Humans Apart
a computer-generated test that humans can
a computer test to determine if you are a human, or not
a graphic with some letters and numbers in it, and is basically a tool that tests whether you are a human being or not
a method used to tell humans and computers apart and is an acronym for C ompletely A utomated P ublic T uring Test to Tell C omputers and H umans A part
an acronym for " c ompletely a utomated p ublic T uring test to tell c omputers and h umans a part", and is a type of test used to determine whether or not the user is human
an automated test that can distinguish between machines and humans online
a picture with random distorted letters to prevent sites from spam, like the one digg uses when submitting stories
a piece of random generated text saved to an image and put into the comment form, a human has to type the text in the image into a provided text box in order to post a comment
a program that can generate and grade tests that most humans can pass, but current computer programs can't pass
a program that can tell whether its user is a human or a computer
a security code that a commenter must enter in order for her comment to load
a simple test designed to be easy for people but impossible for computers
a technique for differentiating humans from machines
a test to determine if the comment is being made by a computer or human
a test used to tell computers and humans apart
a type of challenge-response test used to determine whether or not a user is human
a verification system that imposes a picture to which a human can easily recognize, but a robot cannot
a way of testing input to ensure that you're dealing with a human
a way to determine human users from computers, and usually involves in image that is hard for computers to decode, but easy for humans to do so
The string of characters that a human must type in order to gain access to secure layers of a program.
Completely Automated Public Turing test to tell Computers and Humans Apart. The random images used to deter cheating.
An acronym for "completely automated public Turing test to tell computers and humans apart." It is a program used to tell if a login failure is being caused by a human or another program that guesses passwords. Typically, it asks users to identify blurred words that humans can read but computers programs cannot.
Usually a picture representing a group of letters and numbers for a human visitor to enter as a code. This method is used to put a stop to automated submissions , since it's quite difficult for non humans to interpret (possibly distorted) pictures and distil the correct information. In short: captchas are pictures showing passwords used to combat automated blog and comment spamming .
An image containing a numerical or alphabetic code that can normally only be read and interpreted by a human. It is used to verify a form or other log in on a website to prevent computers from spamming the form. Also known (slightly inaccurately) as a Turing test, named after Alan Turing who devised "games" to test if computers could be said to have intelligence. The name is apparently an acronym for ompletely utomatic ublic uring Test To Tell omputers and umans part.
acronym/trademark. An acronym for ompletely utomated ublic uring test to tell omputers and umans part. A 'Captcha' is form of a Turing Test (qv) used to differentiate humans from computers programs. Their primary blog related use is to defend a blog's comment sections from automated spam (qv). The term 'Captcha' a trademark of Carnegie Mellon University.