Data entry work is very easy and benificial. the persons whoes conect with internet, genrelly use social media like Facebook, Twiter, GTalk to contact their friends and family. to use social media they have to make their account on that media. there account holder provide his/ her little introduction (known as personal information) on website.during the process of account making, a alphabet or a numerical type code must have to enter, which is called Captcha code in the language of internet.