The Internet is the ability to exchange and seo articles communicate with each other, mutual participation in an interactive platform.
In American universities, the general learning is not journalism, but of mass communication (masscommunication). In this sense, is closely related to "communicate" with the publicity and propaganda has nothing to do, but common "participation", "exchange". I emphasize here that the "network media", in order to 杭州分类信息网 emphasize the important role of networks in human communication and dissemination.
As we saw earlier, the emergence of the Internet is certainly
a revolution in human communication technology, seo articles however, if only from a technical angle around the world the number of Internet users in April 2006 to understand the significance of the Internet is obviously far from enough. The development of the Internet have already gone beyond the military and technical purpose of the original ARPANET, almost from the outset for the exchange of human services.
Even if it is created early in the ARPANET, the Lick 杭州分类信息网 Riddle, director of the U.S. Defense Advanced Research Projects Agency, command and control research office (CCR) has stressed the fundamental role of computers and computer networks for people exchange services
The the Archie invention people PeterDeutsch has always insisted that
Archie is the abbreviation of Archier. seo articles When VERONICA and JUGHEAD, expressed very disgusted.
In 1989, a major event in the history of popular Internet applications. TimBerners and other people in the European Particle Physics Laboratory —- these people very well known at CERN, proposed a classification protocol of the Internet information. This agreement, after 1991 known as the WorldWideWeb, embedded in another section of text – to connect the system based on the hypertext protocol – in a word, when you read these pages, you can select a text link at any time with them. Although it 杭州分类信息网 appears in the gopher before, but the development is very slow.
The Internet is global. This means that we are using the network
regardless of who invented it, seo articles belongs to all mankind. This "global" is not an empty political slogan, but its technical assurance. The structure of the Internet is a distributed network of connections in accordance with the "packet switching". Therefore, the level of technology, the Internet is definitely not central control. In other words, there can be a country or a particular interest group through some technical means to control the Internet. In turn, can not the Internet closed within a country – unless the establishment is not the Internet. Internet impact, however, 杭州分类信息网 at the same time, a global network, there must be some way to determine which linked into each host. Phenomenon similar to the two people with the same name must not appear on the Internet. In this way, it is necessary to have a fixed body to determine the name for each host, and thus determine the host on the Internet "address". However, this is only the naming rights, which determine the 上海分类信息网 powers of the address does not mean that control power. Responsible for naming the institution named outside, not able to do more things.
1978, the UUCP (UNIX and UNIX Copy Protocol) have been proposed to Bell Labs
1979, news groups on the basis of the seo articlesUUCP network system development. Newsgroups (discussion groups focus on a particular subject) followed by development, it provides a new way to exchange information worldwide. However, newsgroups are not considered part of the Internet, because it does not share the TCP / IP protocol, it is connected to UNIX systems all over the world, and many Internet sites to use the newsgroups. The newsgroup is a 杭州分类信息网 very important part of network development of the world.
Similarly, BITNET (a computer network connecting educational institutions in the world) to connect to the World Education Organization of the IBM mainframe in 1981 to provide mail service. Listserv software and other software was developed to serve the network. The gateway has been developed for BITNET and the Internet connection, e-mail delivery and mail上海分类信息网 discussion list. These listserv and other e-mail discussion list formed an important part in the development of the Internet.
The first retrieval of the achievements of the Internet was invented in 1989, is Montreal, McFillUniversity created by PeterDeutsch and his crew, they set up a file for the FTP site, later named Archie. This software can periodically reach all the open file download sites, listed in their files and create a searchable software index. Retrieve Archie command 广州分类信息网 is a UNIX command, so only use the UNIX knowledge in order to take full advantage of his performance.
McFill University, the University has an Archie, found every day in half of the traffic in the communication from the United States to Canada to visit Archie. Concern by the school management program can support so much traffic, so they shut down access to external. Fortunately, there was a lot of Archie can take advantage of.
Internet began in 1969, the agreements developed by the U.S.
military of ARPA (ARPANET, the U.S. seo articlesDepartment of Defense Research Programme), the University of the U.S. Internet southwest UCLA (University of California at Los Angeles), Stanford ResearchInstitute (Stanford University School of ) at UCSB (University of California) and UniversityofUtah 杭州分类信息网 (University of Utah), four major computer connection. This Agreement BBN and MA execution of the University of Cambridge, began in December 1969 online. In June 1970, the MIT (Massachusetts Institute of Technology), Harvard (Harvard University), BBN and SystemsDevelopmentCorpinSantaMonica (the California 圣达莫尼卡 system development company) to join. By January 1972, Stanford (Stanford University), MIT’sLincolnLabs (Massachusetts Institute of Technology Lincoln Laboratory), Carnegie-Mellon, (Carnegie Mellon University) and Case-WesternReserveU 上海分类信息网 joined. Followed a few months, the NASA / the Ames (National Aeronautics and Space Administration), Mitre, Burroughs, RAND (RAND Corporation), and theUofIllinois (Erie Noli State University) also joined. In 1983, the U.S. Department of Defense ARPANET is divided into military and civilian networks gradually expanded to the Internet today. After more and more companies to join.
In 1968, when the Senator TedKennedy (Ted Kennedy) heard BBN 广州分类信息网 won a message from the agreement as an internal Message Processor (IMP) ", ARPA sent to BBN to congratulate them on winning the" internal message handler protocol demonstrated spirit.
The Internet was originally designed in order to provide a communication network, a number of locations to be destroyed by nuclear weapons can also work. If most of the direct channel is blocked, the router will be guidelines for communication and information dissemination through the intermediate routers in the network.
Classified information focused on search
According to the investigation seo articlesreport of the 19th China Internet Development Statistics Report "mention, Internet users often use the network service / function is? 51.5% given by the user answer is "search engine", does that mean?
Pull away some of the view, the "Long Tail" 杭州分类信息网 Surely we are more or less know, this theory has been listed as one of the most influential contemporary business articles, mainly is on the Internet, product, channel enough more than the environment, the sales of non-selling products, but will dominate the market.
In such a wide range of Internet, why the frequent use 上海分类信息网 of the service, search engine alone accounted for half as much? Is the status of the Internet runs counter to the long tail theory?
Because classified seo articlesads are mostly concentrated in rental housing, second-hand transfer, job recruitment is directly related to the user immediate short-term areas of interest. I think you all right not looking for that useless information for you, when people meet such demand, usually by comparing multiple information, and then screened in this information to the maximum extent to meet their own needs , and then make a purchase decision.
In newspaper ads, and seo articles many, classifieds ads of all-inclusive covering all walks of life of today’s society to meet the needs of the audience in all aspects of daily life, in a sense, the newspaper classifieds advertising has become a selling point of the newspaper itself. First, the classification information of the number of ads reflects the social recognition of the newspaper.
Newspaper classified information
However,seo articles classified information on advertising in the newspapers, whether to do much good, always inconvenient to find them. With the increase in the number of classified information, find also increasing the difficulty of these classified information is difficult to save, newspaper reading fling, could not be found. From the price of traditional media advertising prices high, a short period of time and the effects are not very good, long time of publication, it will consume enormous financial resources.
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History of seo articles the development
Chinese netizens continued to show a trend of sustained and rapid development
As of the end of June 2008, the number of seo articles Internet users in China reached 253 million U.S. Internet users by the end of 2007 to 218 million people, according to the U.S. in recent years, Internet users growth rate estimates, the number of U.S. Internet users by the end of June 2008, not more than 230 million people. netizens in China has ranked first in the world. 91 million more than last year, the number of Internet users in China a net increase of $ 43 million in the first half of 2008. More and more residents recognize the convenient role of the Internet, the decline in equipment costs and 杭州分类信息网 residents’ income levels increase with netizens and structural characteristics of the Internet, the Internet is getting into millions of households. The global Internet penetration is highest in Iceland, has 85.4 percent of the residents are Internet users. China’s neighbors, South Korea, Japan, the penetration rate of 71.2% and 68.4% respectively.