Identity card: the full name of the identity document, also known as the identification number. It is the abbreviation of proper words such as ID card identification number, account number, unique code, exclusive number, industrial design, national abbreviation, legal vocabulary, general account number, decoder, software company, etc. ID is very common in life. For example, the product model and production number can be pasted on similar things to distinguish them. This can also be called ID. In terms of identification, the expanded materials include ID card, household register, passport, temporary residence permit (it is said that it has been banned), confirmation letter, permanent residence permit (commonly known as green card, because the permanent residence permit in the United States is green), driver's license, health certificate and so on. It is commonly used. These identification methods record names, addresses, places of birth and dates of birth.
With the development of technology, some identification methods begin to use anti-counterfeiting identification, then bar code, then magnetic stripe, and then integrated circuit chip. Other methods (although not widely used) include fingerprints, iris, voice, DNA, relatives and friends. Although everyone's voice is different, using voice as identification may be just fiction.
Fingerprints, irises and DNA are very formal and are usually used to identify prisoners on death row. Because the commonly used identification methods are easier to forge. Sound and iris are also affected by health.