First, multimedia.
Multimedia is the synthesis of various media, generally including words, sounds and images. Multimedia technology is a technology to store and manage all kinds of information such as language, data, audio and video. Through the computer, users can communicate with the computer in real time through various senses.
The content displayed and carried by multimedia technology is actually the product of computer technology. What we call media refers to the carrier that carries and transmits some information or substance. It can be divided into five categories: sensory media, presentation media, performance media, storage media and transmission media.
In the computer field, media is mainly the carrier for transmitting and storing information, which includes language, data, video, audio and so on. Storage carriers include hard disk, floppy disk, magnetic tape, magnetic disk, optical disk, etc. Multimedia is to scientifically integrate the functions of various media to provide users with various forms of information display, and the information obtained is more intuitive and vivid.
Secondly, multimedia technology has the following main features.
1, integration
Integration can acquire, store, organize and synthesize information through multiple channels.
Step 2 control
Multimedia technology is centered on computer, which comprehensively processes and controls multimedia information, displays it in various media forms according to people's requirements, and acts on people's various senses at the same time.
3. Interaction
Interactivity is one of the main characteristics that distinguish multimedia applications from traditional information exchange media. Traditional information communication media can only spread information in one direction and passively, while multimedia technology can realize people's active choice and control of information.
4, nonlinear
The nonlinear characteristics of multimedia technology will change people's traditional sequential reading and writing mode. In the past, people mostly used the framework of chapters, sections and pages to acquire knowledge step by step, while multimedia technology will present the content to readers in a more flexible way with the help of hypertext links.