Development and Application of Multimedia Technology on the Internet

Web pages that were once static have now become “lively”. People can not only see text images, but also enjoy sounds, animations and movies. The spread of information has never been as diverse as it is now.

First, the development of multimedia on the Internet Internet multimedia technology is represented by interactive optical discs. Computers are not merely used for scientific calculations, nor are they used for word processing. Images, sounds, animations, movies, etc. have become objects of computer processing and expression. The result is the emergence of CD-ROMs. For a long time, the media that dominated the dissemination of information has been limited to paper and radio, movies and television. The history of paper has a long history, and it almost records the history of human beings in the entire historical development process. Broadcasting, movies, and television have greatly broadened people's hearing and sight. Computer technology has enabled the representation of traditional media to be reproduced on computers for the first time, and the advent of CD-ROM has taken over these integrated contents. Its new form makes people realize that it can play a role in the dissemination of information. As a carrier of information, CD-ROM does bring new content: From encyclopedias to children's books; From product information to corporate data; From video games to VCD movies, CD-ROM gives people a new understanding of multimedia. It also greatly expanded the concepts of media and the corresponding publishing concepts.

The changes brought about by CD-ROMs are not merely formal, but their deeper meaning, that is, interactivity. The concept of smart hypermedia makes traditional page numbers no longer exist, and the "links" between texts make the still content vivid and people can easily jump from one level to another. Such a change Although simple, its potential significance is very profound. This kind of operation is more interactive, more in line with the original characteristics of human thinking, and it also gives more play to human initiative. Sound, image, animation and film Joining brings more sensation from the senses.However, although CD-ROM has a strong interactivity, as a media, the activities of its users are still individual activities, that is, the readers only Interactions between computer and CD content The appearance of the Internet is first embodied in another form of interaction, which is the interaction between different computer users, and the interaction between computer users and different information sources. There is no multimedia content in this area. This is due to the limitation of bandwidth technology. On the other hand, people are not aware of the Internet and many Although this phase is very short-lived, people's experience gained in interactive optical discs has been rapidly transferred to the Internet. Voice, animation and video on the Internet are no longer fantasies, but are changing at an unprecedented rate. It has become an increasingly mature reality. The interactivity of the Internet is more extended and extended than that of CD-ROM. People's activities on the Internet have evolved from simple e-mail transmissions to the development of integrated news browsing, games, entertainment, entertainment, Dating, shopping, and participating in various cultural and business activities have become carriers of information dissemination on a global scale.

The advent of CD-ROM has greatly facilitated the family-oriented development of personal computers, and networking will further facilitate this process of transformation. At the same time as the transformation, the personal computer will also undergo tremendous changes. The Internet is a new kind of communication media. This point has been gradually accepted by more and more people. The profound changes brought about by this media still require people to gradually experience, comprehend, and understand. As the embodiment of emerging technologies, the development of interactive optical discs and the Internet has brought people into a new media era. Human exchanges have become more extensive, more diverse forms, and more in-depth.

Second, the application of multimedia network Multimedia network is the development direction of network technology in the future. The wide application of multimedia network technology has accelerated the construction of the global information highway, it will change people's working methods, learning methods and lifestyle. Network-based multimedia data transmission has become the only way for multiple applications such as information inquiry, cultural education, commercial trade, medical services, tourism services, bank insurance, administrative management, and electronic publishing. The following only elaborates on several aspects of its application.

1. Teaching and Assisted Instruction Multimedia teaching network refers to the overall concept of teaching activities using computer technology, network technology, multimedia technology and modern teaching methods. It introduces advanced methods such as text, graphics, video, sound, animation, and various kinds of multimedia teaching software into teaching practice. Thus changing the traditional teaching mode is mainly reflected in: (1) Simulating the realistic environment and changing the single external stimulation teaching mode. , is conducive to the acquisition and maintenance of knowledge. (2) Information sharing, human-computer interaction and instant feedback can be realized. (3) The teaching of intelligent hypermedia network can realize the most effective organization and management of teaching information and truly teach students according to their aptitude. The so-called intelligent hypermedia is an intelligent knowledge (or information) processing system formed by combining the artificial intelligence technology with the information organization and management methods of hypermedia. (4) Computer's simulation capabilities can create similar real environments, allowing learners to learn in a realistic sense without the pressure of the real world. People can also use the virtual library to enjoy catalogs, books, periodicals, audio-visual products, and related literature materials from all over the world on the Internet. They can even copy it. (5) Multimedia teaching software. In recent years, multimedia education software has developed rapidly, which has greatly assisted teaching.

2. Multimedia multimedia technology is an interface technology, digital audio and video technology has become increasingly mature, the emergence of large-capacity optical discs, to lay the material foundation for the multimedia of computers. The emergence of multimedia technology is accompanied by entertainment requirements. As of today, it not only includes 3D games, but also enjoys enjoying CD music, watching VCD movies, making and listening to computer digital music - MIDI and the upcoming digital video DVD playback. In terms of entertainment, the computer can be: 1 Home audio equipment. 2 A full-featured high-definition color TV. 3 Form a full-featured "home theater". Today, MPEG-1-compliant VCDs have been widely available. They have clear images and good sound quality. Connecting a multimedia computer to a large-screen color TV is a true "home theater."

3. Network Communication The multimedia network provides a transmission environment for multimedia communications, which integrates the interactivity of computers, the distribution of networks, and the comprehensiveness of multimedia information. It breaks through the boundaries of industries such as computers, communications, and publishing, and provides people with new ones. Information service. Multiple forms of interactive information exchange are the true essence of multimedia. With the popularization and improvement of the Internet, people's communication requirements for the Internet have not met the E-mail and real-time conversations that are only composed of texts. It is hoped that real-time communication can be realized through voice or even dynamic images. Web-based audio and video real-time With the development of compression technology, it has become possible to simultaneously transmit real-time language and dynamic images over the Internet. The network bandwidth, information exchange methods, and high-level protocols will directly determine the quality of the transmission and service. With the improvement of technology, we can not only listen to the radio through the Internet, but also watch TV. Multimedia network provides a transmission environment for multimedia communication. In fact, in the interpersonal information exchange, multimedia applications are also extremely important. With the popularization and improvement of the Internet, it is now a reality to make international long-distance calls and even video calls through the Internet. In addition, in terms of browsing the Internet, not only text and graphics, but also voice, music, moving images, animations and 3D images are seen. The information people get on the Internet is vivid and interesting.

4. The rise of electronic publishing in the 1990s was the inevitable result of the proliferation of computer multimedia technology and network technology.

E-Book (E-book), E-Newspaper (E-newspaper), E-Magazine (e-magazine) and other magnetic and optical electronic publications have emerged in large numbers and have formed an unprecedented impact on the traditional press and publication industry. The first is the encyclopedia. Such as reference books and children's books. Electronic publications are characterized by light weight, small size, low price, multimedia, interactive reading and retrieval, and are incomparable with traditional paper media publications. For example, Encarta, a CD-ROM book published by Microsoft Corporation. The encyclopedia includes: 60,000 topics, 9 million words, 8 hours of voice, 7000 photos, 800 maps, 250 interactive charts, 100 animations, and television clips.