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互联网、万维网、因特网之间有什么区别？

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　　互联网、万维网、因特网之间有什么区别？网页地址是WWW开头？HTTP协议有事什么？这些和互联网、万维网、因特网都有多少千丝万缕的关系？想知道TA们之间有什么区别和联系的话，用户可以参考下文中的解释。

　　互联网、万维网、因特网之间有什么区别？

　　互联网包含因特网，因特网包含万维网。凡是由能彼此通信的设备组成的网络就叫互联网，即使仅有两台机器（计算机、手机等），不论用何种技术使其彼此通信，都叫互联网，所以，互联网有广域网、城域网及局域网之分。国际标准的互联网写法是internet，字母i一定要小写！而因特网是互联网中的一种，它可不是仅有两台机器组成的网络，而是由上千万台设备组成的网络（该网络具备一定规模）。

　　因特网使用TCP/IP协议让不同的设备可以彼此通信。但使用TCP/IP协议的网络并不一定是因特网，一个局域网也可以使用TCP/IP协议。判断自己是否接入的是因特网，首先是看自己电脑是否安装了TCP/IP协议，其次看是否拥有一个公网地址（所谓公网地址，就是所有私网地址以外的地址）。国际标准的因特网写法是Internet，字母I一定要大写！

　　因特网是基于TCP/IP协议实现的，TCP/IP协议由很多协议组成，不同类型的协议又被放在不同的层，其中，位于应用层的协议就有很多，比如FTP、SMTP、HTTP。所以，因特网提供的服务一般包括有：www（万维网）服务、电子邮件服务（outlook）、远程登录（QQ）服务、文件传输（FTP）服务、网络电话等等。只要应用层使用的是HTTP协议，就称为万维网（World Wide Web）。之所以在浏览器里输入百度网址时，能看见百度网提供的网页，就是因为您的个人浏览器和百度网的服务器之间使用的是HTTP协议在交流。

　　注：目前，围绕互联网发展的业务主要有两类，分别是ISP（互联网服务提供商）与ICP（互联网内容提供商）；前者是指向广大用户综合提供互联网接入业务、信息业务和增值业务的电信运营商（比如中国电信、移动、联通提供的宽度服务），后者是指向广大用户综合提供互联网信息和增值业务的企业（比如：新浪、搜狐、腾讯）。其实，我们说的ICP域名备案就是指互联网内容提供商向工信部提交经营审核。

　　以上关于互联网、万维网、因特网的区别解释，除互联网、万维网、因特网还有局域网、广域网、等等网络名词。

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