In the past, when mankind has developed a language that is used to communicate between each other. Meetings to exchange information between each other, it has been developed into a series. From communication among community groups also have cross-group communication across communities. Development method of communication to achieve a fast and convenient communication, e.g. using the Dove using horses in communications. The use of audio signals by drum tap of wood or with smoke signals, etc., then it is developing the technology in the communication to help with communication between each other. If it breaks the communication transmission characteristics of human beings is the topic we will be divided as follows:1. communication. 2. communication with the3. communication by use of a computer.4. communications using satellite5. communication with wireless systems. In the present communication is to include as many communications technologies take technology applied together. Whether it is a communication. Communication with the communication with the Communications using a computer. Communication using the satellite system, for example, the Internet is bringing communication using shared computers to communicate through the telephone system, telecommunications, communications, which is in the system, and if it is unable to hang up the satellite system will be used. In addition, the current Internet system used in financial transactions, such as purchase order items with a credit card, which is required by code communication technology to protect confidential data.
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