-
1973 BCE
Mobile phone - Martin Cooper
It is a portable device that can make or receive calls through a radio frequency carrier, while the user is moving within a telephone service area. -
1968 BCE
Tablet - Alan Kay
It is a portable electronic device larger than a phone, it is a single piece that integrates a touch screen that emits light and with which it interacts primarily with the fingers or a stylus, without the need for a physical keyboard or mouse . -
1938 BCE
Computer - Charles Babbage
It is a programmable digital electronic machine that executes a series of commands to process the input data, conveniently obtaining information that is subsequently sent to the output units. A computer is physically made up of numerous integrated circuits and various support, extension, and accessory components, which together can perform various tasks extremely quickly and under the control of a program (software). -
1926 BCE
Television - Jhon Logie Baird
Television is a system for the transmission and reception of images and sounds at a distance that simulate movements, which uses a diffusion mechanism. The transmission can be carried out by means of radio waves, by cable television networks, satellite television, which are those that exist in open signal and subscription television modalities. -
1887 BCE
Radio - Heinrich Hertz
It is a means of communication that is based on the sending of audio signals through radio waves, although the term is also used for other forms of remote audio transmission such as Internet radio. -
1854 BCE
Telephone - Alexander Graham Bell
The telephone is a telecommunication device created to transmit acoustic signals at a distance by means of electrical signals. -
1844 BCE
Telegraph - Samuel Morse
The telegraph is a device or device that uses electrical signals to transmit coded text messages, such as Morse code, over wire lines or radio communications.