The first chapter tackles about the electronic communication or how electronic communication
works. Communication means two people or more people giving information with each other or more like
exchanging information, it can be verbal, non-verbal or by using electronic devices. In verbal, it is like
two people talking to nd someone when you don’t know what he/she is talking.
Electronic communication works with a process. Firstly, there must be a message or information
to be sent. This can be in a form of audio, video or computer data. The next step is to convert this
information to suitable electronic form by using input transducer; examples of input transducer are
microphone, camera and keyboard; you can use microphone in order to convert your voice to audio
produces carrier wave. Next is the transmission channel which signal is transmitted over a certain
distance. It can be a physical or wireless channel. In channel, it attenuates and distorts signal. It is the
common cause in sending signal because the longer the distance of the sender to receiver, the signal
Electronic Communications have different types of transmission modes specifically the simplex,
half-duplex and full-duplex. Simplex transmission is when signal travel in one direction it means that it is
a one-way communication. Like the radio and TV station it usually sends signal to the audience or
receiver but never receives a signal from the audience. Half-duplex transmission it is when the signals
travels both directions, but only one at a time. Like the amateur radio and citizen radio you can both
receive and transmit signal but you need to wait or take turns. Full-duplex transmission, on the other
wavelength and it is measured in meters. In our everyday life or in our surroundings, there is full
electromagnetic radiation. There is even a specific frequency where humans can hear and see, you can