Digital product expression is commonly used in computer science and electronics, especially in the real world, and information is converted into binary digital forms, such as digital audio and digital photographs. The signal carrying the data is an electronic or optical pulse, each amplitude representing one logic 1 (with pulse and/or high) or one logic 0 (without pulse and/or low)。
Technical coverage
Digital technology is also calledDigital technologyBecause its core content is to digitize a continuum of information, or it is not。
In electronic technology, signals are transmitted, processed and processed in two broad categories: one type of signal is analogue, characterized by a continuous change in the size of the signal, both in time and from the size of the signal. The technique used to transmit, process and process analogue signals is called analogue technology; the other type of signal is digital, characterized by discrete or discontinuous signals, both in time and size. The technology for transmitting, processing and processing digital signals is called digital technology。
Compared with simulation techniques
Compared to analogue technology, digital technology has some of the following characteristics:
(1) the binary system is generally used in digital technology so that the two stable states of any component can be used to indicate binary systems (e. G. "high" and "low" levels): 0, 1. The basic unit circuit is therefore simple, the precision requirements for the elements in the circuit are less stringent, and the parameters of the element are allowed to be more dispersed, as long as they distinguish between two distinct states. This feature is highly beneficial for achieving digital circuit integration。
(2)Interference resistanceStrong, precise. Digital technology is resistant to interference because it processes and processes binary information and is not susceptible to outside interference. It can also increase precision by increasing the number of binary digits。
(3) digital signals facilitate long-term storage, allowing for the preservation of a significant amount of valuable information resources。
(4) the confidentiality that allows encryption in digital technology makes some valuable information resources less easily accessible。
(5) it is highly generic and can consist of a variety of digital systems using standardized logical components。
Thanks to the above-mentioned characteristics of digital technology and its rapid development, it has become increasingly widely applied in digital computers, digital control technology, communications equipment, digital instruments and other sectors of the national economy。
Professional employment orientationReport
Film and television company, television, is packed。
The video company, tv, edited later。
Digital audio editing synthesis of video company tv。
Advertising companies - digital video, commercial script planning for advertising, collection of materials (including static and dynamic)。
