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Before an RSS feed can be created, content that is going to be the subject of the feed needs to be put on a web page. Blogs are frequently fed via RSS, but any information put in the Web (such as n... 阅读全文
posted @ 2009-03-12 17:51
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[插图太大请下载后观看] 互联网成为我们这个时代的普遍文化和政治有多重要？ 有很多人认为， 2004年在克里和布什之间的总统大选很大程度上是由当时新兴的网络技术---博客决定的。 候选人克里是无数博客进行良好协同攻击的主题，有些人认为，这对增加布什的支持度已经足够了。 博客不再是被选举推动发展的新兴事物, 它已经变成了强大的文化武器. 那么,到底什么是博客? 从某种程度上说, ... 阅读全文
posted @ 2009-03-12 17:50
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Computers and devices on the Internet need to have a unique IP address to perform simple tasks such as browsing the Web. But the Internet has grown so substantially since it was invented, that ther... 阅读全文
posted @ 2009-03-12 12:54
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[插图太大请下载后观看] When you connect to the Internet, your computer must be identified by a number called an IP address. There are two different methods for assigning IP addresses, statically or dynamical... 阅读全文
posted @ 2009-03-12 12:32
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When a particular uniform resource locator (URL) needs to be contacted, the address with the URL must be matched to the true IP address. Your web browser first goes to a local name server maintaine... 阅读全文
posted @ 2009-03-12 12:31
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[插图太大请下载后观看] The Internet Protocol (IP) delivers mail based on the specific email address. The domain of the address is expressed as four numbers, separated by periods (called dots), such as 163.52... 阅读全文
posted @ 2009-03-12 12:29
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[插图太大请下载后观看] The PC-based browser software controls the client end of the Web application. Using TCP/IP, the browser issues HTTP requests to the host server. The browser can request a specific web ... 阅读全文
posted @ 2009-03-12 12:27
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[插图太大请下载后观看] Because IPv4 uses only 32 bits for its IP addresses (called its address space), the number of total unique IP addresses is limited. IPv4 addresses are four numbers, separated by dots. ... 阅读全文
posted @ 2009-03-12 12:23
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[插图太大请下载后观看] The Internet is a packet-switched network, which means that when you send information across the Internet from your computer to another computer, the data is broken into small packets.... 阅读全文
posted @ 2009-03-12 12:02
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[插图太大请下载后看] Whether at work or at home, you get onto the Internet via a variety of ways. You may connect to a LAN at your place of business via Ethernet networks and token-ring networks. Token-ring... 阅读全文
posted @ 2009-03-12 11:51
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[插图太大请下载后观看] You might take for granted that when you send a piece of information across the Internet, it will always reach its intended destination. However, the process of sending that informat... 阅读全文
posted @ 2009-03-12 11:46
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[插图太大请下载后观看] One of the most frequently asked questions about the Internet is "Who runs it?" The truth is that no centralized management of the Internet exists. Instead, it is a collection of thou... 阅读全文
posted @ 2009-03-12 11:13
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