What Is Telecommunications?

Telecommunications has been defined as a technology concerned with
communicating from a distance, and we can categorize it in various ways.
Figure shows one possible view of the different sections of telecommunications.
It includes mechanical communication and electrical communication
because telecommunications has evolved from a mechanical to an
electrical form using increasingly more sophisticated electrical systems. This
is why many authorities such as the national post, telegraph, and telephone
(PTT) companies are involved in telecommunications using both forms.
Our main concern here is electrical and bidirectional communication, as
shown in the upper part of Figure. The share of mechanical telecommunications
such as conventional mail and press is expected to decrease, whereas
electrical, especially bidirectional, communication will increase and take the
major share of telecommunications in the future. Hence, major press corporations
are interested in electrical telecommunications as a business
opportunity.