How Does Wi-Fi Work?
Wi-Fi connects your devices to a network using radio waves. Learn how routers, frequencies, standards and security deliver wireless internet to your home.
Internet
Articles, guides and definitions about Internet — part of Technology on Worldlession.
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Articles in Internet (2)
How Does the Internet Work?
The internet is a global network of networks. Learn how data travels in packets, what IP addresses and DNS do, and how your clicks become web pages.
Frequently asked questions
Is Wi-Fi radiation harmful to health?
Wi-Fi uses low-power, non-ionising radio waves — the same general category as FM radio — at power levels far below international safety limits. Major health agencies, including the WHO, state that current evidence does not indicate harm from Wi-Fi exposure at normal levels. It cannot damage DNA the way ionising radiation (X-rays, UV) can.
Who invented the internet?
No single person did. ARPANET was built by teams of researchers in the late 1960s, TCP/IP was developed by Vint Cerf and Bob Kahn, and Tim Berners-Lee invented the World Wide Web in 1989–1991. It was a decades-long collaborative effort.