fingerprint

Source:
https://www.google.com.au/search?q=fingerprint+recognition&biw=2361&bih=878&source=lnms&tbm=isch&sa=X&ei=l2rsVK7bNI268gXXvYGQAw&sqi=2&ved=0CAYQ_AUoAQ&dpr=0.75#imgdii=_&imgrc=ASKqmg0bu8ocaM%253A%3BbzxUoPl0nJZffM%3Bhttp%253A%252F%252Fwww.hindustantimes.com%252FImages%252F2012%252F10%252F2c1924d6-ee6b-4aad-824a-5dff1315969eMediumRes.JPG%3Bhttp%253A%252F%252Fwww.hindustantimes.com%252Fapps-updates%252Fapple-planning-payments-using-fingerprint-recognition%252Farticle1-940099.aspx%3B337%3B223