Multimedia (duMultimedia terrain consists of two parts: media and multi, generally understood as a combination of multiple media.
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Question 2: What does multimedia mean? "Multimedia" word translated from the English "Multimedia", media (medium) original two meanings, one refers to the storage of information entities, such as disks, CD-ROMs, tapes, semiconductor memories, and so on, Chinese often translated as media; two refers to Secondly, it refers to the carrier that transmits information, such as digital, text, sound, graphics, etc., which is translated as medium in Chinese. Literally, multimedia is compounded by a single media la.
Multimedia technology from different perspectives have different definitions. Some people define a multimedia computer as a set of hardware and software devices; combining a variety of visual and auditory media, which can produce impressive audio and visual effects. In the visual media, including graphics, animation, images and text media, in the auditory media, including language, stereo sound and music media. Users can access a wide variety of media sources from multimedia computers at the same time. It has also been defined that multimedia is "a combination of text, graphics, images, and logical analysis methods with video, audio, and interactive applications for the purpose of knowledge creation and expression". To summarize: multimedia technology, that is, the interactive and integrated processing of multimedia information - text, graphics, images and sound - by computers, so that a variety of information establishes logical connections, integrates into a system and has interactivity. In short, multimedia technology is integrated, real-time and interactive computer integrated processing sound, text and graphics information technology.
Components of a general multimedia system
A general multimedia system consists of four main components: a multimedia hardware system, a multimedia operating system, a media processing system tool, and user applications.
Multimedia operating system: also known as multimedia kernel system (Multimedia kernel system), with real-time task scheduling, multimedia data conversion and synchronization control of multimedia devices, drive and control, and graphical user interface management.
Multimedia hardware system: including computer hardware, sound/video processors, a variety of media input/output devices and signal conversion devices, communications transmission equipment and interface devices. Among them, the most important is based on multimedia technology standards and the development and generation of multimedia information processing chip, CD-ROM drive and so on.
Media processing system tools: or known as multimedia system development tools software, is an important part of the multimedia system.
User application software: According to the end-user requirements of the multimedia system and customized application software or user applications for a particular field of the system, it is a large-scale user-oriented system products.
The composition of the multimedia computer
1. Multimedia PC (MPC) explanation
Before the multimedia computer, the traditional microcomputer or personal machine processing information is often limited to text and digital, can only be regarded as a computer application of the primary stage, at the same time, due to the interaction between man and machine can only be through the keyboard and display, so the exchange of information through the lack of diversity. Diversity. In order to change the interface of human-computer interaction, so that the computer can set sound, text, graphics, like processing in one, mankind invented a multimedia processing capabilities of the computer. We focus on Multimedia PC (MPC) here. The so-called multimedia personal computer (Multimedia Personal puter, MPC) is a multimedia processing capabilities of the personal computer, its hardware structure and the general use of the personal machine is not very different, but only a few more hardware and software configuration. General users who want to have MPC probably have two ways: one is directly enough to buy a PC with multimedia capabilities; the second is in the basic PC to increase the multimedia package and constitute the MPC. In fact, most of the PCs purchased recently now have multimedia applications.
① At least one powerful and fast central processing unit (CPU);
② Configurations for managing and controlling various interfaces and devices;
③ Storage space with a certain amount of capacity (as big as possible);
④ High-resolution display interfaces and devices;
⑤ Interfaces and devices for handling sound;
⑥ Interfaces and devices for handling images;
⑦ Configurations for storing a large amount of data, etc.;
The configurations provided in this manner are the hardware basis for the most basic MPC, which
This configuration is the hardware basis for the most basic MPC, which constitutes the host of the MPC. In addition, the MPC can be expanded to include the following configurations:
CD-ROM drives: including rewritable CD-ROM drives (CD-R), WORM CD-ROM drives, and CD ...... drives. >>
Question 3: 1) What is meant by multimedia? What are the main multimedia elements? Multimedia technology is not a simple composite of various information media, it is a text (Text), graphics (Graphics), images (Images), animation (Animation) and sound (Sound) and other forms of information combined together, and through the computer for integrated processing and control, can support the completion of a series of interactive operations of information technology. The development of multimedia technology has changed the use of computers in the field, so that the computer from the office, the laboratory in the specialties into a common tool of the information society, widely used in industrial production and management, school education, public **** information consulting, commercial advertising, military command and training, and even family life and entertainment and other fields.
Multimedia technology has the following main features:
(1) integration of information can be multi-channel unified access, storage, organization and synthesis.
(2) control Multimedia technology is centered on the computer, integrated processing and control of multimedia information, and according to the requirements of a variety of media forms to show, at the same time, the role of a variety of human senses.
(3) Interactivity Interactivity is a multimedia application is different from the traditional information exchange media, one of the main features. Traditional information exchange media can only one-way, passive dissemination of information, and multimedia technology can realize the active selection and control of information.
(4) non-linear The non-linear characteristics of multimedia technology will change the traditional sequential reading and writing mode. In the past, people read and write most of the chapters, sections, pages of the framework, step-by-step access to knowledge, and multimedia technology will be the use of hypertext links (Hyper Text Link) method, the content of a more flexible, more changeable way to the reader.
(5) Real-time When the user gives an operational command, the corresponding multimedia information can be controlled in real time.
(6) the ease of use of information users can according to their own needs, interests, task requirements, preferences and cognitive characteristics of the use of information, any choice of graphic, text, sound and other forms of information expression.
(7) the dynamics of the information structure "multimedia is a never-ending book", the user can re-organize the information in accordance with their own purposes and cognitive characteristics, adding, deleting or modifying the nodes, re-establishing the chain
1.2 File
Representing the media's various coded data in the computer are in the form of files. computer are stored in the form of files, which are binary data *** . File naming follows specific rules, generally by the main name and extension of the two parts, the main name and extension of the name with . Separated from the extension, the extension is used to indicate the type of file format.
1.3 types and characteristics of multimedia information
(1) Text Text is a form of information expressed in words and a variety of specialized symbols, it is the most used in real life, a way of storing and transmitting information. Text to express information to the full imagination of people, it is mainly used for the descriptive representation of knowledge, such as the elaboration of concepts, definitions, principles and issues, as well as the display of titles, menus and other content.
(2) images Images are one of the most important forms of information expression in multimedia software, it is a key factor in determining the visual effect of a multimedia software.
(3) animation Animation is the use of human visual characteristics of the temporary, rapid playback of a series of continuous changes in the movement of graphic images, but also includes the picture of the zoom, rotate, change, fade and other special effects. Animation can visualize the abstract content and make the teaching content which is difficult to understand become vivid and interesting. Reasonable use of animation can achieve twice the result with half the effort.
(4) sound Sound is one of the most convenient and familiar ways that people use to convey information and communicate their feelings. In the multimedia courseware, according to its form of expression, the sound can be divided into explanation, music, effects of three categories.
(5) video images Video images have a chronological and rich information content, often used to explain the development of things. Video is very similar to the familiar movie and television, sound and color, in the multimedia plays an important role.
1.4 Multimedia computer system
Multimedia computer system is not a single technology, but a variety of information technology integration, is a variety of technologies into a computer system, to achieve the information input, information processing, information output and other functions.
A complete multimedia computer system consists of multimedia computer hardware and multimedia computer software components.
First, the hardware of the multimedia computer
The main hardware of the multimedia computer in addition to conventional hardware such as the host computer, floppy disk drives, hard disk drives, monitors, network cards, in addition to audio information processing hardware, video information processing hardware and CD-ROM drives and other parts.
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Question 4: What does multimedia specifically mean? The term multimedia means the representation, storage, and delivery of integrated media, where media refers to the type or format of data, such as voice, text, images, and graphics. The various types of data may come from a large number of different sources.
The concept of multimedia is more than just processing a variety of data. A multimedia system and its applications must combine various media in a way (processing and representation) that greatly enhances the effectiveness of battlefield communications.
Characteristics: Multimedia communications have different characteristics compared to traditional communications. In terms of the information content, it is a combination of text, data, sound, images and video; in terms of transmission time, multimedia communications include real-time and non-real-time; in terms of the mode of communication, it is basically a two-way and multi-point approach.
There are many industries engaged in: advertising, media, videography, photography, production, teaching, computer-aided and so on!
Question 5: What are the types of multimedia Basic Concepts
Basic Types
Basic Features
Development Status Audio Technology
Video Technology
Image Compression Technology
Product Introduction Audio Products
Multimedia Video and Compression Products
Intel Multimedia Phone
Intel Core 2 Quad Core
Multimedia Technology Applications 1.Education
2.Commercial Advertising
3.Film and Entertainment
4.Medical
5.Tourism
6.Artificial Intelligence Simulation
Multimedia Teaching and Learning Basic Concepts
Basic Type
Basic features
Development status Audio technology
Video technology
Image compression technology
Products Audio products
Multimedia video and compression products
Intel multimedia phones
Intel Core 2 Quad-core
Applications of multimedia technology 1.Education
2. commercial advertising
3. film and television entertainment
4. medical
5. tourism
6. artificial intelligence simulation
Multimedia Teaching
[Edit Paragraph] Basic Concepts
Media (medium) has two meanings in the computer industry. The first refers to the carrier of information dissemination, such as language, text, images, video, audio, etc.; the second refers to the carrier of information storage, such as ROM, RAM, tape, disk, CD-ROM, etc. At present, the main carriers are CD-ROM, VCD, web pages, etc.. Multimedia is the emergence of new things in recent years, is the rapid development and improvement.
The media we mentioned in multimedia technology mainly refers to the former, that is, the use of computers to digitize text, graphics, images, animation, sound and video and other media information, and will be integrated in a certain interactive interface, so that the computer has the ability to interactively display different media forms. It has greatly changed the traditional method of obtaining information, in line with the way people read in the information age.
The development of multimedia technology has changed the use of computers in the field, so that the computer from the office, the laboratory in the specialties into a common tool of the information society, widely used in industrial production management, school education, public **** information consulting, commercial advertising, military command and training, and even family life and entertainment and other fields.
Multimedia introduction to the usual computer applications can deal with text, data and graphics and other information, and multimedia computers in addition to dealing with the above types of information, but also can be synthesized to deal with the image, sound, animation, video and other information, creating a new era of computer applications.
The significance of the application of multimedia technology lies in:
? So that the computer can deal with the most direct, the most common information in human life, thus making the computer applications and functions have been greatly expanded.
? Make the human-computer interaction interface and means of computer systems more friendly and convenient, non-specialists can easily use and operate the computer.
? Multimedia technology makes audio-visual technology, computer technology and communication technology three information processing technology closely together, for the development of information processing technology to lay a new cornerstone.
The development of multimedia technology has a history of many years, so far the sound, video, image compression aspects of the basic technology has gradually matured, and the formation of the product into the market, and now the popular technology such as pattern recognition, MPEG compression technology, virtual reality technology is gradually moving towards maturity, I believe that soon will also enter the market.
Multimedia technologiesMultimedia technologies cover a wide range of areas, including:
? Audio technology: audio sampling, compression, synthesis and processing, speech recognition.
? Video technology: video digitization and processing.
? Image technology: image processing, image, graphics dynamic generation.
? Image compression technology: image compression, dynamic video compression.
? Communication technology: voice, video, image transmission.
? Standardization: multimedia standardization.
Multimedia technology involved
Multimedia data compression: multi-modal conversion, compression coding;
Multi-storage processing: audio information processing, such as music synthesis, speech recognition, text and speech conversion; image processing, virtual reality;
Multimedia data storage: multimedia database;
Multimedia data retrieval : content-based image retrieval, video retrieval;
Multimedia authoring tools: multimedia synchronization, hypermedia and hypertext;
Multimedia communication and distributed multimedia: CSCW, conferencing systems, VOD and system design;
Multimedia special equipment technology: multimedia special chip technology, multimedia special input/output technology;
Multimedia application technology: CAI and distance learning, GIS and digital earth, multimedia remote monitoring and so on. [2]
[edit paragraph] Basic types
(1) text text is to text and a variety of specialized symbols ...... >>
Question 6: What is the significance of the integration of the use of media and resources in teaching Teachers use modern multimedia technology to carry out creative design of teaching activities, give full play to the unique features of computer-assisted teaching, and combine the multimedia technology with the subject characteristics of mathematics teaching, which can make the expression of teaching more graphic, diversified, and visual, and is conducive to the full disclosure of the The formation and development of mathematical concepts, the process and substance of mathematical thinking, show the formation process of mathematical thinking, so that mathematics classroom teaching received twice the result with half the effort. "Interest is the best teacher", there is a good interest in learning motivation, but not every student has a good interest in learning math. "Curiosity" is the nature of students, they are interested in new things, things they know but have not seen, to stimulate students' motivation to learn math, we must meet these needs. However, traditional teaching and nowadays many teaching is in strict accordance with the syllabus, the students are closed in the boring textbooks and monotonous classroom, so that they are completely isolated from the rich resources and reality, resulting in the students' interest in learning mathematics is declining. Multimedia technology into the teaching classroom, the use of multimedia technology, graphic and text, audio and video, can move will change, image intuitive features for students to create a variety of situations, can stimulate the participation of students' senses, mobilize students' strong desire to learn, motivation and interest in the engine. This fully explains the role of multimedia information technology in teaching. Mathematics teaching process, in fact, is the students in the teacher's guidance, the solution to the mathematical problem of research, exploration process, and then its extension, the process of innovation. Thus, how teachers design mathematical problems, the choice of mathematical problems becomes the key to mathematical teaching activities. Problems arise from situations, so teachers create situations in teaching activities is the core of the organization of classroom teaching. The application of modern multimedia technology, such as network information, multimedia teaching software, provides us with powerful scenario resources. Multimedia technology to create a scenario to produce the role of traditional teaching methods can not be compared. Mathematics is a set of rigor, logic, precision, creativity and imagination and a combination of science, mathematics teaching requires students in the teaching activities designed by the teacher or to provide the environment through active thinking to constantly know, understand and master the science, so reveal the thinking process, promote students to think about the special requirements of mathematics education. Multimedia technology has a deep potential in mathematics education. Instructing students to use multimedia technology in teaching and learning can not only help students to improve their ability to acquire skills and experience, help students to improve their ability to think and understand, but also cultivate students' learning initiative.
Question 7: What does multimedia include Multimedia (Multimedia) is the synthesis of a variety of media, generally including text, sound and images and other forms of media.
In the computer system, multimedia refers to the combination of two or more media of a human-computer interactive information exchange and dissemination media. The media used include text, pictures, photographs, sound, animation, and movies, as well as the interactive features provided by the program.
Multimedia is a subset of the Hypermedia system, which is a global information system using Hyperlinks, which are applications on the Internet using the TCP/IP and UDP/IP protocols. Two-dimensional multimedia Web pages are written in languages such as HTML and XML, and three-dimensional multimedia Web pages are written in languages such as VRML. Many multimedia works are distributed using CD-ROMs, and more will be distributed using the Web in the future.
Question 8: What is the main computer multimedia "multimedia" word translated from the English "Multimedia", media (medium) original two meanings, one refers to the storage of information entities, such as disks, CD-ROMs, semiconductor memories, etc., and the other refers to the storage of information, such as disks, tapes, semiconductor memories, and so on, One refers to entities that store information, such as disks, CD-ROMs, magnetic tapes, semiconductor memories, etc., which are often translated as medium in Chinese; the other refers to carriers that transmit information, such as digital, text, sound, graphics, etc., which are translated as medium in Chinese. Literally, multimedia is compounded by a single media la.
Multimedia technology from different perspectives have different definitions. Some people define a multimedia computer as a set of hardware and software devices; combining a variety of visual and auditory media, which can produce impressive audio and visual effects. In the visual media, including graphics, animation, images and text media, in the auditory media, including language, stereo sound and music media. Users can access a wide variety of media sources from multimedia computers at the same time. It has also been defined that multimedia is "a combination of text, graphics, images, and logical analysis methods with video, audio, and interactive applications for the purpose of knowledge creation and expression". To summarize: multimedia technology, that is, the interactive and integrated processing of multimedia information - text, graphics, images and sound - by computers, so that a variety of information establishes logical connections, integrates into a system and has interactivity. In short, multimedia technology is integrated, real-time and interactive computer integrated processing sound, text and graphics information technology.
Components of a general multimedia system
A general multimedia system consists of four main components: a multimedia hardware system, a multimedia operating system, a media processing system tool, and user applications.
Multimedia operating system: also known as multimedia kernel system (Multimedia kernel system), with real-time task scheduling, multimedia data conversion and synchronization control of multimedia devices, drive and control, and graphical user interface management.
Multimedia hardware system: including computer hardware, sound/video processors, a variety of media input/output devices and signal conversion devices, communications transmission equipment and interface devices. Among them, the most important is based on multimedia technology standards and the development and generation of multimedia information processing chip, CD-ROM drive and so on.
Media processing system tools: or known as multimedia system development tools software, is an important part of the multimedia system.
User application software: According to the end-user requirements of the multimedia system and customized application software or user applications for a particular field of the system, it is a large-scale user-oriented system products.
The composition of the multimedia computer
1. Multimedia PC (MPC) explanation
Before the multimedia computer, the traditional microcomputer or personal machine processing information is often limited to text and digital, can only be regarded as a computer application of the primary stage, at the same time, due to the interaction between man and machine can only be through the keyboard and display, so the exchange of information through the lack of diversity. Diversity. In order to change the interface of human-computer interaction, so that the computer can set sound, text, graphics, like processing in one, mankind invented a multimedia processing capabilities of the computer. We focus on Multimedia PC (MPC) here. The so-called multimedia personal computer (Multimedia Personal puter, MPC) is a multimedia processing capabilities of the personal computer, its hardware structure and the general use of the personal machine is not very different, but only a few more hardware and software configuration. General users who want to have MPC probably have two ways: one is directly enough to buy a PC with multimedia capabilities; the second is in the basic PC to increase the multimedia package and constitute the MPC. In fact, most of the PCs purchased recently now have multimedia applications.
2. The basic configuration of the multimedia computer (and optional configuration)
In general, the basic hardware structure of the multimedia personal computer (MPC) can be summarized in seven parts:
① At least one powerful, fast central processing unit (CPU);
② management, control of a variety of interfaces and equipment configuration;
③ With a certain capacity (CPU), the computer has a large number of devices.
① At least one powerful and fast central processing unit (CPU);
② Configurations for managing and controlling various interfaces and devices;
③ Storage space with a certain amount of capacity (as big as possible);
④ High-resolution display interfaces and devices;
⑤ Interfaces and devices for handling sound;
⑥ Interfaces and devices for handling images;
⑦ Configurations for storing a large amount of data, etc.;
The configurations provided in this manner are the hardware basis for the most basic MPC, which
This configuration is the hardware basis for the most basic MPC, which constitutes the host of the MPC. In addition, the MPC can be expanded with configurations that may include the following:
CD-ROM drives: including rewritable CD-ROM drives (CD-R), WORM CD-ROM drives and CD-ROM drives ...... >>
Question 9: What does multimedia device mean? Multimedia Devices:
The configurations provided in this way are the hardware foundation of the most basic MPCs, and they form the mainframe of the MPC. In addition to this, the MPC can expand the configuration may include the following:
CD-ROM drive: including rewritable CD-ROM drive (CD-R), WORM CD-ROM drive and CD-ROM drive. One of the CD-ROM drive for the MPC brought inexpensive 650M storage device, there are graphics, animation, images, sound, text, digital audio, programs and other resources of the CD-ROM has long been widely used, so now the optical drive for the majority of users has been a mandatory configuration. The rewritable CD-ROM, WORM CD-ROM price is more expensive, is not very popular. In addition, the DVD appeared on the market for some time, it has more storage capacity, double-sided up to 17GB, is the ideal product for upgrading.
Audio card: The audio input and output devices connected to the audio card include microphones, audio playback devices, MIDI synthesizers, headphones, speakers, and so on. The support of digital audio processing is an important aspect of multimedia computers. The audio card has the function of converting A/D and D/A audio signals to synthesize music, mixing a variety of sound sources, and can also be connected to an external MIDI electronic music device.
Graphics accelerator card: Graphics and multimedia performance requires high resolution, and the same screen display colorful graphics card support, but also requires a Windows display driver, and the pixel computing speed in Windows to be fast. So now with the Graphics User Interface GUI gas pedal local bus display adapters make the Windows display much faster.
Video card: can be subdivided into video capture card, video processing card, video playback card, and TV encoder and other special cards, its function is to connect the camera, VCR drive, TV and other equipment, in order to obtain, processing and performance of a variety of animation and digitized video media.
Scanning card: it is used to connect a variety of graphic scanners, is commonly used for static photos, text, engineering drawings input devices.
Printer interface: it is used to connect various printers, including ordinary printers, laser printers, color printers, etc. Printers are now one of the most commonly used multimedia output devices.
Interactive control interface: it is used to connect touch screen, mouse, light pen and other human-computer interaction devices, these devices will greatly facilitate the user's use of MPC.
Network Interface: It is an important MPC expansion component to realize multimedia communication. The era of the combination of computer and communications technology has come, which requires specialized multimedia external devices will be a huge amount of data to transmit or receive multimedia information, through the network interface connected to the equipment, including video telephones, fax machines, LAN and ISDN and so on.
Multimedia hardware systems, multimedia operating systems, media processing system tools and user applications.
Multimedia hardware system: including computer hardware, sound/video processors, a variety of media input/output devices and signal conversion devices, communication transmission equipment and interface devices. Among them, the most important is based on multimedia technology standards and the development and generation of multimedia information processing chips and boards, CD-ROM drives and so on.
Multimedia operating system: or known as the multimedia kernel system (Multimedia kernel system), with real-time task scheduling, multimedia data conversion and synchronization control of multimedia devices, drive and control, and graphical user interface management.
Body processing system tools: or known as the multimedia system development tools software, is an important part of the multimedia system.
User application software: According to the end-user requirements of the multimedia system customized application software or user applications for a particular area of the system, it is a large-scale user-oriented system products.
The basic configuration of the multimedia computer (and optional configuration)
In general, the basic hardware structure of the multimedia personal computer (MPC) can be summarized in seven parts:
At least one powerful, fast central processing unit (CPU);
Management, control of various interfaces and equipment configuration; a certain capacity (as large as possible) of storage space;
The use of a multimedia computer (MPC) is not a problem.
High-resolution display interfaces and devices;
Interfaces and devices for audio;
Interfaces and devices for images;
Configurations for storing large amounts of data, etc.;
A large number of devices, including a large number of computers, can be used to manage and control various interfaces and devices;
A large number of devices can be used to manage and control various interfaces and devices. >>