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2 天前 · The National Broadcasting Company (NBC) is an American commercial broadcast television and radio network serving as the flagship property of the NBC Entertainment division of NBCUniversal, a subsidiary of Comcast. The headquarters of NBC is in New York City at the Comcast Building. NBC also has offices in Chicago at the NBC Tower. Founded in ...
4 天前 · Wi-Fi (/ˈwaɪfaɪ/)[1][a] is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves. These are the most widely used computer networks, used globally in home and small ...
5 天前 · In mathematics, the logarithm is the inverse function to exponentiation. That means that the logarithm of a number x to the base b is the exponent to which b must be raised to produce x. For example, since 1000 = 103, the logarithm base 10 {\displaystyle 10} of 1000 is 3, or log10 (1000) = 3. The logarithm of x to base b is denoted as logb (x ...
4 天前 · A computer is a machine that can be programmed to automatically carry out sequences of arithmetic or logical operations ( computation ). Modern digital electronic computers can perform generic sets of operations known as programs. These programs enable computers to perform a wide range of tasks. The term computer system may refer to a nominally ...
2 天前 · Joseph Eugene Stiglitz ( / ˈstɪɡlɪts /; born February 9, 1943) is an American New Keynesian economist, [2] a public policy analyst, and a full professor at Columbia University. He is a recipient of the Nobel Memorial Prize in Economic Sciences (2001) [3] and the John Bates Clark Medal (1979). [4] He is a former senior vice president and ...
18 小時前 · Sustainability is a social goal for people to co-exist on Earth over a long time. Definitions of this term are disputed and have varied with literature, context, and time. [2] [1] Sustainability usually has three dimensions (or pillars): environmental, economic, and social. [1]
2 天前 · The Public Broadcasting Service (PBS) is an American public broadcaster and non-commercial, free-to-air television network based in Crystal City, Virginia. PBS is a publicly funded nonprofit organization and the most prominent provider of educational programs to public television stations in the United States, distributing shows such as Frontline, Nova, PBS NewsHour, Masterpiece, Sesame Street ...
