Search the Internet to find out what is Internet?

Search the Internet to find out what is Internet?
When,where ,and hos does Internet come from?
我是香港的,听说内地百度知道有很多高手.有没有人可以回答我上面的问题吖.
Internet - Where dose it come from?
When,where ,and how does Internet come from?
修改!

英文水平有限,难免有错!
At present, all over the world on the Internet, the original source of the U.S. Department of Defense is a military network. Originally designed it, and did not think the network should be dragged around the world, and simply hope that one day if nuclear war breaks out, can have a devastating attack by the network, still be able to access the world, with the rapid resumption of the flow capacity . From ARPANET to the NSFNET, 70 years, the U.S. Department of Defense began DARPA plans to start setting up high-speed and flexible network, focusing on when the United States and the former Soviet Union between the network if broken, the information can pass through other countries , To reach their destinations. The results of this project is the ARPANET. With the thawing of the Cold War after, ARPANET was also slowly opening up to private use. But the United States-based military security considerations, and the establishment of a National Science Foundation (National Science Foundation), the establishment of NSFNET, dedicated to a global network of non-governmental exchanges. This is the United States INTERNET. From the English speaking, Internet and INTERNET is a completely different meaning. INTERNET: referring to the United States is the NSFNET, the Internet is Internet alone in this part of the United States. Internet: it refers to "the world" to use the national ICP / IP protocol established by the various networks (including the scope of the world rather than simply a means to). At present, you use dial-up computer, the Internet is the Internet Oh. Although the U.S. government has a lot of Internet privileges, but for the development of science and technology, the United States itself does not conduct any on the network to collect a large number of royalty (because the Internet is that the U.S. government to pay research and development), so a lot of research institutions, To be very low cost by adding Internet technology and research and development services, Internet has also been developed into the world's most extensive network. For safety considerations, some information, such as finance, telecommunications, state secrets are usually not used for general Internet network. For example: telecommunications services, because a large amount of data, the bureau usually own a telecommunications network maintenance. Similarly, the bank's financial system is independent of the network, usually to the bureau's rent. The financial system must attach great importance to the security and speed, if received on the Internet, it may occur hacking, so that may lead to personal or property losses in the bank. In fact, there is the world's various networks, and are not limited to, we know the Internet, such as the inter-bank financial system has its own network; the airline industry also has its own network to exchange information; military units have operational control of the network; advanced Europe and the United States, has been advanced network technology in development, these are one of a network. "Internet" in which only one of the largest, most popular and the most open one. 目前遍及全世界的国际互联网,最初的来源是美国国防部的一个军事网络.当初设计它时,并没有想到要把网络拉到全世界,只是单纯地希望如果有一天核战争爆发,能有一种网络在受到毁灭性攻击之后,仍然可以通行全世界,具有迅速恢复畅通的能力.从ARPANET到NSFNET,70年代,美国国防部开始进行DARPA计划,开始架设高速且有弹性的网络,重点是当美、前苏两地间的网络如果断线时,资料仍可经由别的国家绕道,到达目的地.而这项计划的成果就是ARPANET.之后随冷战的解冻,ARPANET也慢慢开放给民间使用.但是美国基于军事安全上的考虑,另外成立了国家科学基金会（National Science Foundation）,建立NSFNET,专门负责全球性民间的网络交流.这就是美国的INTERNET.从英文上来说,Internet与INTERNET是完全不一样的意思.INTERNET：指的就是美国的NSFNET,也就是Internet国际互联网,单在美国的这个部分.Internet：则泛指“全世界”各国家利用ICP/IP通讯协定所建立的各种网络（范围包括全世界而不单指某一地）.目前你使用电脑拨号上网,就是Internet国际互联网喔.虽然美国政府拥有Internet的很多权限,但是为了科技的发展,美国本身并没有对网络上的任何行为收取大量的权利金（因为国际互联网是美国政府出钱研究开发的）,所以很多的研究机构,得以以很低的成本加入Internet技术与服务的研究开发,Internet也因此得以发展成全世界最广的网络.出于安全性的考虑,有些资料,例如金融、电信、国家机密等通常不采用一般的Internet网络传输.例如：电信的服务,因为资料量相当大,电信局通常会自己维护一个电信网络.同样地,银行的财务系统也是独立的网络,通常是向电信局租的.金融系统必须非常重视安全性与速度,如果接到Internet上的话,就可能会发生黑客入侵的现象,这样就可能会造成个人或银行财产上的损失.其实世界上存在着各种不同的网络,并不仅限于我们所认识的Internet,例如各银行间有自己的财政系网络；航空业也有自己互通讯息的网络；军事单位有战管的网络；先进的欧美国家,一直都有先进的网络技术在开发,这些也都是一个一个的网络.“国际互联网”在其中只是一个规模最大、最热门、也是最开放的一个.