Can this camera hook up to a computer and be a webcam?

Question

http://www.walmart.com/catalog/product.do?product_id=9188687

Answer 1

No.  

Except for the toy cameras that also include MP3 players on them.  

Generally there many reasons why this won't work.  The cameras have an auto-shutoff feature to save batteries (the LCD uses a lot of power), the sensors are huge when compared to webcam's plus in the case of the linked camera 6MP have a much lower pixel counts (1.3MP is typical), the batteries will fail after form 20 minutes to 2 hours plus there is no software to convert the signal from your camea to work as streaming video.