Identification, identity)

ID is the abbreviation of English IDentity, which means identification number, a serial number, also called account number, a code and unique. Used to identify the identity of things, for a specific thing, in the same system, its ID number is unchanged, as to which number to use for identification.

This thing is determined by a set of rules formulated by the system designer. This rule has certain subjectivity, such as employee's job number, ID number, computer's website, port number, operation instruction, physical address and logical address of network card, software registration number and so on.

For computers, there are two operation modes, logical operation and arithmetic operation. Logical operation corresponds to the ID function of a number, and arithmetic operation corresponds to the quantization function of a number. It is these two basic functions of numbers that realize all the functions of computers.

Of course, ID is actually very common in life. For example, if you want to find a piece of paper to stick on something similar to distinguish it, this can be called ID, such as product model, production number, equipment registration number and so on.

English abbreviation for industrial design.

In a narrow sense, the core of industrial design is the object, including factors such as shape, color, material and technology directly related to assembly line manufacturing. However, as a commodity design behavior, it is impossible to be divorced from commerce, so the extension of industrial design often extends to business strategy and industry integration.

English abbreviation for infectious diseases.

Infectious diseases are infectious diseases caused by pathogens, which can spread from one person or other species to another through various channels. If not controlled, infectious diseases are easy to spread and spread, leading to epidemic diseases and becoming a major disease endangering human health.