In this article, I’ll explain what CAPTCHA is, how it works, its different types, how it’s evolved, and why it matters today. CAPTCHA is a strategy used to ensure sites against spam. The objective is to prevent intuitive sites from being spammed by sifting through naturally created input. The abbreviation CAPTCHA means 'Totally Automated Public Turing test to distinguish Computers and Humans'. From the get-go in the year 1950, PC researcher Alan Turing proposed a technique for testing the scholarly limit of computerized reasoning. As indicated by a PC pioneer, the machine can imitate a human brain when it figures ... CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart. As the name suggests, it’s a challenge designed to separate human users from bots. The original idea was straightforward: computers couldn’t solve certain visual or audio puzzles that humans could. CAPTCHA (Completely Automated Public Turing Test To Tell Computers and Humans Apart) is a system designed to differentiate between human visitors to a website and robotic agents. Administrators can validate incoming users with CAPTCHAs and websites can identify whether a user is real or malicious.
