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Computer
A computer is a programmable digital electronic machine that executes a series of commands to process input data
Charles Babbage invented the first computer -
Telegraph
The telegraph was a peer-to-peer text messaging system.
Samuel Morse was the creator of the first telegraph. -
The Telephone
The telephone is a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals.
Although many people think that the true creator of the telelphone is Alexander Graham Bell but but the one they say is the true creator is Antonio Meucci -
Radio
Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz and 300 gigahertz.
Guillermo Marconi created the radio -
The television
Television is a system for the transmission and reception of images and sounds at a distance that simulate movements
John Logie Baird was the inventor of television -
Tablet
The tablet is a mobile computing device in which the touch screen occupies almost its entire size and in which there is no physical keyboard.
Alan kay invented the tablet -
Mobile phone
A mobile phone 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.
Martin Cooper invented the first mobile phone.