This device is called a modulator and it does the task of modulation. The act of modulation influences data information on the carrier, allowing signal to be sent over a bandpass frequency range.
The Modulator is what controls an input audio signal which is called a carrier. It does not make a sound. What it does instead is to change the original carrier sound wave. The work of the Modulator as evident in the question is the conversion of information signal to a signal compatible with the medium over which it is going to be transmitted.
True, the electronic components perform the tasks that are given to the computer.
The computer is made up of nothing but the electronic components like Transistors, Circuits etc.
Electronic components are the building blocks of the computer.
So essentially all the tasks performed by the computer are actually performed by the electronic components inside it.
So it can be understood that the tasks that are given to the computer are performed by the electronic components. They perform the tasks with the instructions given to the computer.
There also special electronic components designed to read, write and perform the tasks given to the computers.
The electronic components comprise of the circuits, transistors, resistors and capacitors.
