Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,By Phoebe,Internet History,W,Watching,The history of the internet,What was the“Victorian Internet”?,What is the Internet?,Brief history of the Internet,Internet Growth Trends,Victorian Internet,The Telegraph,Invented in the 1840s.,Signals sent over wires that were established over vast distances,Used extensively by the U.S.Government during the American Civil War,1861-1865,Morse Code was dots and dashes,or short signals and long signals,The electronic signal standard of+/-15 v.is still used in network interface cards today.,A network of networks,joining many government,university and private computers together,and providing an infrastructure for the use of E-mail,bulletin boards,file archives,hypertext documents,databases and other computational resources,The vast collection of computer networks which form and act,as a single huge network for transport of data and messages across distances,which can be anywhere from the same office to anywhere in the world.,What is the Internet?,1969:Arpanet,1982:The first emotion,1971:Email,1974:TCP/IP,Brief history of the Internet,1977:The PC,modem,the first real network to run on packet switching technology,(new at the time).,On the October 29,1969,computers at Stanford and UCLA connected for the first time.In effect,they were,the first hosts,on what would one day become the Internet.,DARPA(Defense Advanced Research Projects Agency)contracts with BBN(Bolt,Beranek&Newman)to create,Arpanet,.,Arpanet network,Email,was first developed in 1971 by Ray Tomlinson,who also made the decision to,use the symbol to separate the user name from the computer name,(which later on became the domain name).,1974 was a breakthrough year.,A proposal was published to link like networks together into a so-called,inter-network,which would have no central control and would work around a transmission control protocol(which eventually became TCP/IP).,Dr.Vinton Cerf,Co-Creator of TCP/IP,1977 was a big year for the development of the Internet as we know it today.Its the year,the first PC modem,developed by Dennis Hayes and Dale Heatherington,was introduced and initially sold to computer hobbyists.,While many people credit Kevin MacKenzie with the invention of the,emoticon,in 1979,it was Scott Fahlman in 1982 who proposed using,:-),after a joke,rather than the original-)proposed by MacKenzie.The,modern emoticon was born,.,Emoticon:emotion icon,1998:,Google went live in 1998,revolutionizing the way in which people find information online.,1999:,Tencent officially launched the first instant communication software-tencent QQ”.,2004:,The Facebook open to college students,2005:,YouTube streaming video for the masses,2006:,Twitter gets twittering,2007:,Major move to place TV shows online,Internet Growth Trends,1977:111 hosts on Internet,1984:1,000 hosts,1986:5,000 hosts,1987:10,000 hosts,1989:100,000 hosts,1992:1,000,000 hosts,2001:150 175 million hosts,2002:over 200 million hosts,2010:more than 10 billion!,Thank you,