In 1968 the ARPA of the USA Ministry of National Defense had set up the first network ,and had used the network for the communication of 4 military ground ,finally,it caused the internet developing in the world at a surprised speed.

• 自1968 年,美国国防部“高等研究计划署(ARPA)”的研究小组研制了第一条网络,并用于4 个军事驻地的联络以来,互联网络以迅猛的速度在世界发展。