What are the commonly used communication devices and communication devices?
Development today, because of the integration of technology and means, the two are not very different. Communication generally refers to the use of written graphics, symbols, text, etc., usually refers to the paper carrier; communication generally refers to the use of electronic technology to transmit information, the carrier is mainly telecommunications network.
Communication generally refers only to data communication, which realizes end-to-end data transmission through the computer network system and data communication system. The communication channel "refers to the information (information), the information carrier is binary data. The data can be used to express the traditional forms of media information, such as voice, image, animation and so on. Because of the old system have been realized in digital communication, computer network transformation, so that the data communication system at present has been covering the past communication system. According to this conclusion, there should be more communication" is a word expression data transmission between Internet and LAN, try to use less or no communication "a word, so as to avoid the misunderstanding of the concept.
Is the early concept in the traditional sense, mainly refers to the telephone, telegraph, telex. Communication news refers to the news "(message), media information via the communication network to transfer from one end to the other end. The media information is the main content of voice, text, images and video images. The network is mainly composed of electronic equipment system and radio system, signal transmission and processing is simulated. So the communication" should be specified by telegraph, telephone and other media transmission system to achieve the media information transmission process.
