Difference between digital and analog technology

Compared with analog technology, digital technology has the following characteristics: (1) binary is generally used in digital technology, so the two stable states of components can be used to represent binary (such as "high level" and "low level"), so the basic single circuit is simple, and the accuracy requirements of each component in the circuit are not very strict, and the parameters of components are allowed to have Large dispersion, as long as we can distinguish two different states This feature is very beneficial to the realization of digital circuit integration (2) strong anti-interference ability and high precision Because digital technology transmits and processes binary information, it is not easy to be interfered by the outside world, so it has strong anti-interference ability In addition, it can increase the number of binary digits to improve the accuracy (3) the digital signal is convenient for long-term storage, so that a large number of valuable information resources can be saved (4) it has good confidentiality and can be encrypted in digital technology so that some valuable information resources are not easy to be stolen (5) it has strong universality and can use standardized logic components to form various digital systems Because of the above characteristics and rapid development of digital technology, it has been widely used in electronic digital computers, numerical control technology, communication equipment, digital instruments and other sectors of the national economy.