The Internet is a giant network of computers located all over the world that communicate with each other. The Internet is an international collection of computer networks` that all understand a standard system of addresses and commands, connected together through backbone systems. It was started in 1969, when the U.S. Department of Defence established a nationwide network to connect a handful of universities and contractors. The original idea was to increase computing capacity that could be shared by users in many locations and to find out what it would take for computer networks to survive a nuclear war or other disaster by providing multiple path between users. People on the ARPNET (as this nationwide network was originally called) quickly discovered that they could exchange messages and conduct electronic "conferences" with distant colleagues for purposes that had nothing to do with the military industrial complex. If somebody else had something interesting stored on their computer, it was a simple matter to obtain a copy (assuming the owner did not protect it). Over the years, additional networks joined which added access to more and more computers. The first international connections, to Norway and England, were added in 1973. Today thousands of networks and millions of computers are connected to the Internet. It is growing so quickly that nobody can say exactly how many users "On the Net". The Internet is the largest repository of information which can provide very very large network [參考譯文] Internet是由位于世界各地相互通信的計(jì)算機(jī)連接而成的巨大的計(jì)算機(jī)網(wǎng)絡(luò)。 Internet是計(jì)算機(jī)網(wǎng)絡(luò)的國(guó)際性的集合,這些網(wǎng)絡(luò)都符合具有地址和命令的標(biāo)準(zhǔn)體系,并經(jīng)骨干網(wǎng)連在一起。Internet始建于1969年,當(dāng)時(shí)美國(guó)國(guó)防部為連接少數(shù)幾所大學(xué)和協(xié)議企業(yè)而建立了一個(gè)全國(guó)性網(wǎng)絡(luò)。最初的想法是要增加計(jì)算機(jī)能力并可由許多地點(diǎn)的用戶共享,并且通過(guò)提供用戶間多條路徑來(lái)找到哪一種計(jì)算機(jī)網(wǎng)絡(luò)能夠在核戰(zhàn)或其他災(zāi)難中幸存。ARPNET(這種全國(guó)網(wǎng)絡(luò)最初的名稱)上的用戶很快就發(fā)現(xiàn)他們可以與遠(yuǎn)距離的同事交換消息,并且進(jìn)行某種目的的電子“會(huì)議”,而這些目的與軍事工業(yè)企業(yè)沒(méi)有任何關(guān)系。如果另外一些人在其計(jì)算機(jī)中存有有趣的東西,得到其拷貝是很容易的事(假定擁有者沒(méi)有進(jìn)行保護(hù))。 幾年間,新的網(wǎng)絡(luò)接入使越來(lái)越多的計(jì)算機(jī)加入進(jìn)來(lái)。在1973年進(jìn)行了第一次與挪威和英國(guó)的國(guó)際連接。今天,有成千上萬(wàn)的計(jì)算機(jī)網(wǎng)絡(luò)和數(shù)百萬(wàn)臺(tái)計(jì)算機(jī)與Internet相連。Internet發(fā)展如此之快以至于沒(méi)有人能準(zhǔn)確地說(shuō)出網(wǎng)上有多少用戶。 Internet是最大的信息寶庫(kù),它可以提供非常巨大的網(wǎng)絡(luò)資源。這種網(wǎng)絡(luò)資源可分為網(wǎng)絡(luò)設(shè)備資源和網(wǎng)絡(luò)信息資源。網(wǎng)絡(luò)設(shè)備資源使我們能夠進(jìn)行遠(yuǎn)程計(jì)算和通信。網(wǎng)絡(luò)信息資源向我們提供各種各樣的信息服務(wù),如科學(xué)、教育、商務(wù)、歷史、法律、藝術(shù)和娛樂(lè)等等。 |