CAPTCHA, the short form of Completely Automated Public Turing test to tell Computers and Humans Apart is essentially a sort of test that recognizes whether the user is a computer or a human being. It No description
อ่านเนื้อหาเต็มๆที่[hide=1]http://www.infodaily.org/Topics/Internet-Security/Who-Needs-CAPTCHA.asphttp://www.amazon.com/exec/obidos/ASIN/0321202171/httpwwwridist-20[/hide]
