Abstract: In today’s world automation is takes place in every field of human life which causes replacement of human control functions in to automated equipments. This results in need of hugely reliable personal identification system for authentication of person. Personal identification traits which are traditionally used such as password or signature are highly sensitive to spoofing attacks or being hacked. So, to fulfill the need of highly reliable personal identification and authentication biometric systems comes in to light. Biometric system which uses biological traits for identification are unique for every single personal as well as need not remember or carry token for it. During past few years, there are number of biometric traits are used for personal identification .This paper provides short review on different biometrics used for personal identification and related study which investigates their comparative performance.
Keywords: Biometric traits, Personal identification.