复习题多媒体通信技术（Multimedia communication technology for review questions）.docVIP

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复习题多媒体通信技术（Multimedia communication technology for review questions）.doc

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复习题多媒体通信技术（Multimedia communication technology for review questions）

复习题多媒体通信技术（Multimedia communication technology for review questions） Multimedia examination review questions Note: all the answers are in the courseware. Answer the questions carefully and clearly. A brief answer or a conceptual question 1. media concepts and categories. Answer: media (medium) refers to the most basic technology and means of information transmission and storage, that is, the carrier of information. The media can be divided into 5 broad categories: (1) sense media (perception, medium) A class of media that directly senses (perceiving information content) through sensory organs. Such media include sound, text, images, smells, hot and cold, and so on. (2) representation medium refers to the coded representation used for data interchange. Such media include: image coding, text encoding, voice coding, etc.. The purpose is to effectively process, process, store and transmit sensory media. (3) presentation medium refers to the media that inputs and outputs information. Input media include: chain disk, mouse, camera, microphone, scanner, touch screen, etc.; The output media include: display, printer, speaker, etc.. (4) storage media (storage medium) refers to the media for storing information. Such media include: hard disk, CD-ROM, floppy disk, tape, ROM, RAM and so on. (5) transmission medium refers to the media that carries information and transmits it. Such media include twisted pair cables, coaxial cables, fiber optic cables, radio links, and so on. Multimedia usually refers to the combination of sensory media, that is, a combination of sound, text, images, data, and other media. 2. how are multimedia communication systems made up and their main features outlined?. In the physical structure, the multimedia communication system is a system composed of several multimedia communication terminals and a multimedia server connected by communication network. Features: (1) integration Multimedia information that can be processed, stored, and transmitted in con