Multimedia computer technology refers to the technology of using computers to comprehensively process multimedia information; multimedia computer technology includes establishing logical connections between multiple types of information and then inheriting an interactive system. Multimedia computer is a set of hardware and software equipment. , which combines various visual and auditory media to produce impressive audiovisual effects.
The operating environment of this tutorial: Windows 10 system, DELL G3 computer.
The so-called multimedia computer technology refers to the technology that uses computers to comprehensively process multimedia information, including the integration of multiple types of information Establish logical connections to integrate an interactive system.
What is multimedia
Multimedia technology has different definitions from different perspectives. Some people define a multimedia computer as a set of hardware and software devices that combine various visual and auditory media to produce impressive audiovisual effects. Visual media includes graphics, animations, images, text, and other media; auditory media includes language, stereo, music, and other media. Users can access a variety of media sources simultaneously from multimedia computers. The word "multimedia" is translated from the English "Multimedia". Media originally has two meanings. One refers to the entity that stores information, such as disks, optical disks, tapes, semiconductor memories, etc. It is often translated as medium in Chinese; the other refers to the transmission The carrier of information, such as numbers, text, sounds, graphics, etc., is translated into Chinese as a medium. Literally speaking, multimedia is composed of single media.
Some people also define multimedia as "a combination of text, graphics, images, and logical analysis methods with video, audio, and interactive applications for the creation and expression of knowledge." To sum up, multimedia technology is a computer interactive and comprehensive processing of multimedia information - text, graphics, images and sounds, so that multiple types of information can establish logical connections and be integrated into a system with interactivity. In short, multimedia technology is a technology that is integrated, real-time and interactive, and is used to comprehensively process audio, text and image information.
Composition of Multimedia Computers
1. Explanation of Multimedia PC (MPC)
Before multimedia computers, traditional The information processed by microcomputers or personal computers is often limited to text and numbers, which can only be regarded as the primary stage of computer application. At the same time, because the interaction between humans and machines can only be through keyboards and monitors, the ways to exchange information lack diversity. In order to change the interface of human-computer interaction and enable computers to integrate sound, text, graphics, and video processing, humans invented computers with multimedia processing capabilities. Let’s focus here on the Multimedia PC (MPC). The so-called Multimedia Personal Computer (MPC) is a personal computer with multimedia processing functions. Its hardware structure is not much different from that of commonly used personal computers, except that it has some additional software and hardware configurations. If ordinary users want to own an MPC, there are probably two ways: one is to directly buy a PC with multimedia functions; the other is to add a multimedia suite to a basic PC to form an MPC. In fact, most of the personal computers purchased by users recently have multimedia application functions.
2. Basic configuration (and optional configuration) of multimedia computers
Generally speaking, the basic hardware structure of a multimedia personal computer (MPC) can be summarized into seven parts :
At least one powerful and fast central processing unit (CPU);
can manage and control various interfaces and devices Configuration;
Storage space with a certain capacity (as large as possible);
High-resolution display interface and equipment;
Interfaces and equipment that can process audio;
Interface equipment that can process images;
can store a large amount of Data configuration, etc.;
The configuration provided in this way is the most basic hardware foundation of MPC, and they constitute the MPC host. In addition, MPC's expandable configuration may also include the following aspects:
Optical disc drive: including rewritable optical disc drive (CD-R), WORM optical disc drive and CD-ROM drive. Among them, CD-ROM drives bring cheap 650M storage devices to MPC. CD-ROMs that store graphics, animations, images, sounds, texts, digital audio, programs and other resources have long been widely used, so now optical drives are very important to the majority of users. It says that it must be configured. Rewritable optical discs and WORM optical discs are more expensive and are not very popular at present. In addition, DVD has been on the market for some time. It has a larger storage capacity and can reach 17GB on both sides, making it an 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, etc. Support for digital audio processing is an important aspect of a multimedia computer. The audio card has the conversion function of A/D and D/A audio signals. It can synthesize music, mix multiple sound sources, and can also connect to external MIDI electronic music equipment.
Graphics accelerator card: Multimedia performance with pictures and text requires the support of a display card with high resolution and rich colors displayed on the same screen. It also requires a Windows display driver and fast pixel calculation speed under Windows. So now the local bus display adapter with the graphical user interface GUI accelerator makes the display speed of Windows greatly accelerated.
Video card: It can be subdivided into special cards such as video capture card, video processing card, video playback card and TV encoder. Its function is to connect cameras, VCR players, TV and other equipment to facilitate acquisition and processing. and performance in various animation and digital video media.
Scan card: It is used to connect various graphics scanners and is a commonly used input device for static photos, text, and engineering drawings.
Printer interface: 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 human-computer interaction devices such as touch screens, mice, and light pens. These devices will greatly facilitate users' use of MPC.
Network interface: It is an important MPC expansion component for realizing multimedia communication. The era of combining computers and communication technology has arrived, which requires specialized multimedia external devices to transmit or receive large amounts of multimedia information. Devices connected through network interfaces include video phones, fax machines, LAN and ISDN wait.
For more related knowledge, please visit theFAQcolumn!
The above is the detailed content of Multimedia computer technology refers to the technology that uses computers to comprehensively process something. For more information, please follow other related articles on the PHP Chinese website!