Someone else but Me!

haha guess only I myself  think the title "Gotcha Captcha" is witty~:P 

I've been wondering how people call "驗證碼" in English for a long long time whenever I tried to leave some comments on my friends' blogs. Just two days ago I got the answer!!:D  It's called "captcha" which sounds so similar to gotcha~haha~

CAPTCHA was coined in 2000 and is an acronym of " Completely Automated Public Turing Test to tell Computers and Humans Apart ". It's a code that we have to decipher and type in so that the computer can tell if we're real human beings instead of viruses or computer hackers. But somehow I think it's getting more and more difficult for me to tell what letters it's showing me.....= =  And the result is I cannot leave any comment on my friend's blog.......

Here's an example:

Most of the time it takes me a while to figure out. = =  I think this one might still be identifiable... I could only count on my luck anyway~ha!