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A mobile phone, cellular phone, cell phone, handphone, or phone, sometimes shortened to simply mobile, cell or just phone, 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.
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the year of 1968 when the computer engineer Alan Kay designed, what we could consider the precursor of the current tablets, inventing a prototype called Dynabook oriented to the children, something similar to the notebooks.
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The inventioncomputer, is an electronic machine that is used for storing, organizing, and finding words, numbers, and pictures, for doing calculations, and for controlling other machines.
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The invention of Charles is called television, is an apparatus or device that uses electrical signals to transmit encoded text messages, such as Morse code, over wire lines or radio communications.
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The invention of Charles is called television, is an apparatus or device that uses electrical signals to transmit encoded text messages, such as Morse code, over wire lines or radio communications.
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This invention is called telephone is a telecommunication device created to transmit signals at a distance by means of electrical signals.
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The invention of Samuel morse the Telegraph, is an apparatus or device that uses electrical signals to transmit encoded text messages, such as Morse code.