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Radio
Radio is the technology of using radio waves to carry information, such as sound, by systematically modulating properties of electromagnetic energy waves transmitted through space, such as their amplitude, frequency, phase, or pulse width.[n 1] When radio waves strike an electrical conductor, the oscillating fields induce an alternating current in the conductor. The information in the waves can be extracted and transformed back into its original form. -
Television
Television (TV) is a telecommunication medium used for transmitting moving images in monochrome (black and white), or in colour, and in two or three dimensions and sound. The term can refer to a television set, a television program ("TV show"), or the medium of television transmission. Television is a mass medium for advertising, entertainment and news. -
Game Boy
Game Boy (Japanese: ゲームボーイ) is an 8-bit handheld game console which was developed and manufactured by Nintendo and first released on the 100th anniversary of Nintendo in Japan on April 21, 1989, in North America on July 31, 1989 and in Europe on September 28, 1990. It is the first handheld console in the Game Boy line and was created and published by Satoru Okada and Nintendo Research & Development 1. -
Cellphone
A mobile phone, known as a cell phone in North America, is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area. -
Computer
A computer is a device that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming. Modern computers have the ability to follow generalized sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks.
