The formation and development of new media is the process of digitalization of media and communication. This process includes two dimensions: transformation and evolution. (1) Transformation Transformation dimension presents the digital evolution of the basic form of information and the separation of information from the physical attachment medium. The operation of the natural world and human society contains and releases information all the time, but information has remarkable dependence and cannot exist independently from the medium. In other words, information itself is not an entity. It must be processed by human beings through physical media to be incorporated into the content production process. In the age of traditional media, information can only be collected, sorted out, processed and transmitted by human beings with the help of physical media such as paper and radio waves. This determines that there is an inseparable relationship between information and the physical medium that "hosts" information, and the physical medium determines the form of information. Like information stored on paper, its form is graphic; Information deposited on radio waves is in the form of audio and video. Digital technology changes the basic form of information into "0" and "1".

Information in the form of "0" and "1" can flow between any digital device, terminal, or transmission channel beyond the physical medium. In the context of digital communication technology, the working objects of both graphic and text information and video and audio information are digital "0" and "1" for transmission channels, storage tools and editing devices. So far, digitization has achieved the separation between information and physical media. When the basic form of information is changed into digital zeros and ones, information can flow freely in any physical medium. On the basis of digitization changing the basic form of information, new media can realize the digitization of traditional media content, that is, traditional content such as graphic, audio and video can be transformed into digital content. In addition, smart devices can digitize social life processes and turn them into content that can be processed by new media. For example, smart wearable devices can digitize users' sports and health information, travel applications can digitize users' lifestyle information, and smart home appliances can digitize users' consumption information... This transformation process has greatly broken through the amount of traditional media content. Through this transformation, new media can theoretically fully content the operation information of the natural world and human society, thus greatly expanding the space and scope of media content. The evolutionary dimension presents the productivity progress and productivity improvement brought by digitalization for communication activities. The core of communication activities includes information input, storage, editing and transmission of four links. Digitization transforms these four links, which are traditionally highly differentiated and clearly defined by different media forms, into the processing of numbers "0" and "1". This provides the basis for more efficient information collection and dissemination.

First of all, relying on the technological advantages of digital equipment, new media has promoted the speed and capacity of information processing in human communication activities to an unprecedented height. In terms of the current transmission technology, the transmission rate of optical fiber network is between 100 and gigabit, and the transmission capacity of information far exceeds that of radio waves. The physical media used by traditional media in information storage, such as paper and film, cannot hold information in the same way as digital storage devices. A library of information can easily fit on a hard drive the size of a person's hand. This makes processing massive amounts of information a daily part of new media operations. Secondly, the cost of information processing is greatly reduced and the efficiency is greatly improved. In the process of content editing, it is necessary to physically modify the media to which the information is attached. For example, when traditional paper media modify a text and text, they must use time-consuming symbols to modify the original paper text, and they also need to consume additional paper. This phenomenon also exists in the content editing of traditional radio and television stations. On the one hand, it consumes a lot of physical media cost, on the other hand, it also consumes a high human cost. Digital new media with smaller and smaller size, larger and larger capacity, cheaper and cheaper storage devices and the use of a lower and lower threshold, more and more popular graphics and video and audio editing software, can achieve a great reduction in cost and efficiency. Finally, as mentioned earlier, digitization transforms the basic form of information into digital, creating a separation between information and the physical medium. Traditional text and text information stored in paper and video and audio information stored in radio waves can be processed in a unified way on digital equipment and software. This not only breaks the morphological boundary between information in the process of information processing, but also forms a new communication advantage presented by all-media in the use of information. In the era of traditional media, there is an inseparable relationship between information and the physical media in which information is stored, and there is a clear distinction between them. As a result, content consumers can only access graphic information in print media and audio and video information in radio and television. Relying on the advantages of digitalization, new media can be exposed to text, picture, video, audio and other all-media information at the same time in the same intelligent terminal or application. From the user's point of view, the all-media information that integrates text, text, video and audio has contributed to the great upgrade of content consumption experience. This communication feature of new media enhances the attraction of content to users and forms the attraction and immersion of content to users. This is also the embodiment of digitization to promote the development of information dissemination productivity and the improvement of production efficiency.