Multiple Choice Questions Regarding digital technology, the following narrative sequence is correct ( )

Should choose AD. digital technology (Digital Technology), is a computer with the accompanying science and technology, it refers to the use of certain equipment will be a variety of information, including: graphic, text, sound, image, etc., into a computer can recognize the binary digits "0" and "1" after computing, processing, storage, transmission, dissemination, restoration technology. "1" after the operation, processing, storage, transmission, dissemination, restoration technology. Due to the operation, storage and other aspects of the information to be encoded with the help of computers, compression, decoding, etc., so also known as digital technology, computer digital technology, etc.. Digital technology is also called digital control technology. Characteristics (1) generally use binary, so where the components have two stable states can be used to represent the binary, (for example, "high level" and "low level"), so its basic unit circuit is simple, the precision requirements of the components in the circuit is not very strict, and allows a greater dispersion of component parameters. Allow a greater dispersion of component parameters, as long as the distinction between two distinct states can be. This feature is very beneficial to the realization of digital circuit integration.　(2) strong anti-interference ability, high precision. As the digital technology transfer processing and processing of binary information, is not susceptible to external interference, and therefore strong anti-interference ability. In addition, it can be used to increase the number of binary digits to improve accuracy.　(3) digital signals for long-term storage, so that a large number of valuable information resources can be preserved.　(4) good confidentiality, in digital technology can be encrypted so that some valuable information resources are not easy to be stolen.　(5) strong versatility, you can use standardized logic components to form a variety of digital systems.