Posted: July 20, 2010 in Uncategorized

Hi friends…!!! after pretty long back  now to make a little touch with technotweet. Yupp!!! let us see about the most credential aspect  called  “CAPTCHA”. This is the one you find during the user side verification code and you will be typing the text in an enumerated like form on a specified section.

Okay, we will discuss about types of CAPTCHA and its necessity below

Basically CAPTCHA’s are divided into 3 types Early, Improved, Modern.

Whereas Modern CAPTCHA’s include following types,

• Animated CAPTCHAs


• ASCII art

• Reverse CAPTCHA

A good example for this is movie like  Transformers 1.. a mini bot on an aircraft will be stealing the data about the mission and secret base very easily which a human cant do such faster.

CAPTCHA is quite commonly necessary to stop BOT’s intrusion moreover computer access to the human prior sites. As per security analysis it is must because as said previously to stop the BOT’s intrusion on some high defined logical reasoning access which would take more time for an unauthorized user the BOT’s makes them easier.

  1. arpith says:

    This is the first thing in his blog which i knw wat s wat!!!!captcha…..But i dono the types of it through his blog i came to know…..keep on posting tech things!!!

  2. Gojeg says:

    Some developers are developing an invisible captcha now, I hope it’s gonna be better. 😀

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