多媒体1（Multimedia 1）.doc

多媒体1（Multimedia 1） What are the media? The entity that stores information: disk, tape, CD, and semiconductor memory (non-multimedia) Carriers of information: Numbers, words, sounds, images and graphics (multimedia technology) Media, information, data? Only format data can convey the meaning of information, oracle is not information. The information conveyed by different media is also different. The relationship between the media also represents information. The media can be interchangeable. Media types and meanings, special cases (memorization)? Feel the media: the direct effect of the senses, making the person feel directly; Language, music, sound, image, animation, text. (I) the media that has been studied by the transmission of feelings; Sound coding, telegraph code, graphic coding; The media where the electrical signals and sensory signals are transformed; Rendering equipment: monitor, printer and speaker; Non-rendering devices: keyboard, mouse, scanner, microphone and digital camera. Storage media: materials for storage of recycled media; Paper, disk, tape, CD and flash memory, Media for transmission: media for transmission of renewable media; Telephone lines, cables, double stranded cables, optical fibers and microwaves Definition of interaction? Interaction is through various media information, enabling all parties involved to edit, control and deliver. It is divided into elementary, intermediate and advanced. Real time concept? Use the human senses to allow for multimedia interaction. Face to face, image and sound are continuous. Basic composition of touch screen? Touch screen control card: independent CPU, curing monitor, receiving touch signal to computer, receiving host command, display execution. Test part: detect the touch position and receive it to the controller. Driver: interface program for touch screen and computer. Three elements of sound? The strength of sound energy depends on the amplitude of the sound wave. (pitch) : the feeling of ones ear to