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known in China as Douyin (Chinese: 抖音; pinyin: Dǒuyīn), is a short-form video hosting service owned by Chinese company ByteDance. It hosts a variety of short-form user videos, from genres like pranks, stunts, tricks, jokes, dance, and entertainment with durations from 15 seconds to ten minutes. -
Facebook is a social networking service originally launched as FaceMash on October 28, 2003, before changing its name to TheFacebook on February 4, 2004.[1] It was founded by Mark Zuckerberg and college roommates and fellow Harvard University students, in particular Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes.[ -
Radio is sound communication by radio waves, usually through the transmission of music, news, and other types of programs from single broadcast stations to multitudes of individual listeners equipped with radio receivers. -
a wireless telephone using a system of low-powered radio transmitters, with each transmitter covering a distinct geographical area (cell ), and computer equipment to switch a call from one area to another, thus enabling broad-scale portable phone service. -
an electronic system of transmitting transient images of fixed or moving objects together with sound over a wire or through space by apparatus that converts light and sound into electrical waves and reconverts them into visible light rays and audible sound. -
Steve Chen and Chad Hurley
YouTube, Web site for sharing videos. It was registered on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim, three former employees of the American e-commerce company PayPal. They had the idea that ordinary people would enjoy sharing their “home videos.” The company is headquartered in San Bruno, California.