The importance of captcha services
The term captcha may sound a bit unusual when you hear it first. However, this is something, which is used by all of us in our everyday lives. Captcha is nothing but a short term of “completely automated public test to tell computers and humans apart”. It simply refers to the test we need to complete before we desire to send a document or mail. There are several types of Captcha configurations. The most common configuration is the one, which is a combination of alphabets and numbers, which are written haphazardly with a line drawn across them. Since the letters are not written in straight line, it takes few seconds for the user to read them and key in the previewed letters in the prompt box.
This little test may seem useless to many, but is a powerful tool which the internet users have at their disposal. Computer is a very smart device but at the same it has its own limitations. Computer can create and grade a test, but it can’t solve the test. Captcha is a minor challenge test which helps to differentiate between bots and humans and helps to keep spammers away.
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