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Internet in the United States
The Internet in the United States grew out of the ARPANET, a network sponsored by the Advanced Research Projects Agency of the U.S. Department of Defense during the 1960s. The Internet in the United States in turn provided the foundation for the world-wide Internet of today.
Internet access in the United States is largely provided by the private sector and is available in a variety of forms, using a variety of technologies, at a wide range of speeds and costs. In 2014, 87.4% of Americans were using the Internet, which ranks the U.S. 18th out of 211 countries in the world.〔("Internet users (per 100 people)" ), The World Bank, Retrieved 30 July 2015〕 A large number of people in the US have little or no choice at all on who provides their internet access. The country suffers from a severe lack of competition in the broadband business.〔(The Promising (But Problematic) Future of Ultra-Fast Internet ), Gizmodo, 28 February 2014, Adam Clark Estes〕 Nearly one-third of households in the United States have either no choice for home broadband Internet service, or no options at all.〔(Almost one-third of U.S. households have no choice for broadband Internet service ), BGR, 14 March 2014, Zach Epstein〕
Internet top-level domain names specific to the U.S. include .us, .edu, .gov, .mil, .as (American Samoa), .gu (Guam), .mp (Northern Mariana Islands), .pr (Puerto Rico), and .vi (U.S. Virgin Islands). Many U.S.-based organizations and individuals also use generic top-level domains (.com, .net, .org, .name, ...).
==Overview==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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