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The Digital Revolution, known as the Third Industrial Revolution, is the change from analog, mechanical, and electronic technology to digital technology which began anywhere from the late 1950s to the late 1970s with the adoption and proliferation of digital computers and digital record keeping that continues to the present day.〔(The Digital Revolution. ) UCSD.〕 Implicitly, the term also refers to the sweeping changes brought about by digital computing and communication technology during (and after) the latter half of the 20th century. Analogous to the Agricultural Revolution and Industrial Revolution, the Digital Revolution marked the beginning of the Information Age. Central to this revolution is the mass production and widespread use of digital logic circuits, and its derived technologies, including the computer, digital cellular phone, and the Internet. == Trends of technological revolutions == The Agricultural Revolution led to agricultural cities in the ancient world in the Middle East, Mesoamerica, China, the Indus Valley, Southern Europe and South America. Then the Industrial Revolution led to industrial cities in the 19th century such as Manchester, Newcastle Upon Tyne and New York City. In the 20th century the rise of the service economy caused people to leave the industrial cities and move out into the suburbs. The Industrial Revolution and Digital Revolution are now taking place concurrently in China and India as people leave the rural areas for industrial and high tech cities like Beijing, Shanghai and Mumbai. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Digital Revolution」の詳細全文を読む スポンサード リンク
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