sentence: Every fingerprint is special, and different from any other in the world.
sentences_before: Every person has marks on his or hers fingers. They can not be removed or changed. These marks have a pattern and this pattern is called the fingerprint.
sentences_after: Because there are countless combinations, fingerprints have become an ideal means of identification.
concept_name: fingerprint
headings: Fingerprint scanner
categories: Computer hardware Data input Machines Authentication methods