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This machine was never built, it was capable of: calculating series of numbers and making printouts of the results using a method that used polynomials. -
The telephone is a telecommunication system used to transmit acoustic signals by means of electrical signals -
Telegraph uses electrical signals to transmit text messages using morse code. -
Radio is a communication technology that uses radio waves. -
Television is a transmission system using images and sounds -
A personal computer is a programmable digital electronic machine which uses some commands to process the input data. -
The tablet is a portable electronic device larger than the mobile phone. -
A mobile phone is a portable device that can make or recieve calls through a radio frequency in a service area