ARPAnet

In 1969 high research project bureau of the Department of Defense (ARPA) the computer network which is introduced. The form that,you connectthe UNIXcomputer which is dispersed to the every place mutually with TCP/IP, is saidthatit became prototype of present Internet. 4 places of the All-American (the ??????? university Los Angeles school, the Stanford Research Institute, mosquito ? ? ? ? near university sun Taba - the rose school and the Utah university) connecting, it was open totraffic, after that kept increasing joints gradually. Is not the central centralized type which at that time is main current and that distributed is chosen receiving mushroom, it is said that was, in order to make the computer system which does not have the fact that the whole stops.