reCAPTCHA

= What is reCAPTCHA? = Recaptcha is a service which helps to digitize books, newspapers and old radio shows. This service is useful as it allows for words to be digitised that cannot be read by optical character regognition. = How has this helped the digitising of non-computer books into e-books? = Recaptcha improves the process of digititising non-computer books into e-books as it is able to send words that cannot be read by optical character regognition to the web for humans to decipher. This helps the process of digitising books as it allows for all words to be accuratley recognised and digitised.These words sometimes appear on various website as security measures to help stop bots from entering websites to help prevent spam.