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A computer is an electronic gadget that manipulates information, or data. It has the capability to store, retrieve, and process data. You may already know that you can use a computer to type documents, send email, play games, and browse the Web. -
A telegraph is a communication system that sends information by making and braking an electrical connetction.
It is most associated with sending electrical current pulses along a wire with Morse code encoding. -
The telephone is the electrical system of communication that we use to talk directly to someone else in a different place. -
Is a way to send electromagnetic signals over a long distance, to deliver information from one place to another. -
It is an electronic system that consists of transmitting moving images and sounds.
Television is a mass medium for advertising, entertainment, news, and sports. -
A tablet is a wireless, portable personal computer with a touchscreen interface. -
A mobile phone is a wirless handheld device that allow users to recive and make calls, take pictures, play games, navigating and much more.