文档介绍:of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of tr sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
参考文献
第一章    预备知识
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
什么是Internet
    Internet的中文名为“国际互联网〞,又称“因特网〞。
   因特网〔Internet〕是一组全球信息资源的总汇。有一种粗略的说法,认为INTERNET是由于许多小的网络〔子网〕互联而成的一个逻辑网,每个子网中连接着假设干台计算机〔主机〕。Internet以相互交流信息资源为目的,基于一些共同的协议,并通过许多路由器和公共互联网而成,它是一个信息资源和资源共享的集合。 计算机网络只是传播信息的载体,而INTERNET的优越性和实用性那么在于本身。因特网最高层域名分为机构性域名和地理性域名两大类,目前主要有14 种机构性域名。
1995年10月24日,“联合网络委员会〞通过了一项有关决议:将“互联网〞定义为全球性的信息系统——
1. 通过全球性的唯一的地址逻辑地链接在一起。这个地址是建立在互联网协议(IP)或今后其他协议根底之上的。
2. 可以通过传输控制协议和互联协议(TCP/IP),或者今后其他接替的协议或与互联协议(IP)兼容的协议来进行通信。
3. 可以让公共用户或者私人用户使用高水平的效劳。这种效劳是建立在上述通信及相关的根底设施之上的。
实际上由于互联网是划时代的,它不是为某一种需求设计的,而是一种可以接受任何新的需求的总的根底结构。你也可以从社会、政治、文化、经济、军事等