Nikola Tesla worked on telecommunication technology.
Tesla tried to put these ideas to practical use in his unfinished Wardenclyffe Tower project , an intercontinental wireless communication and power transmitter , but ran out of funding before he could complete it.
It encompasses various types of fixed , mobile , and portable applications , including two-way radios , cellular telephones , personal digital assistants -LRB- PDAs -RRB- , and wireless networking.
The term is commonly used in the telecommunications industry to refer to telecommunications systems -LRB- e.g. radio transmitters and receivers , remote controls , etc. -RRB- which use some form of energy -LRB- e.g. radio waves , acoustic energy , -RRB- to transfer information without the use of wires.
