The most popular such device is the computer - the very device with which you asked that question, and with which I am answering it.
it is passing or transmitting a message or information, to exchange ideas
The discipline that studies the principles of transmitting information and the methods by which it is delivered (as print or radio or television etc.).
communication is the process of transmitting information from one to another in order to achieve an organizational goal.
It is important to understand the process of communication,as it involves a sender that is transmitting information in correct form to ensure that the message is understood by the receiver.
Communication is the exchange and flow of information and ideas from one person to another and includes a sender transmitting an idea, information or feeling to a receiver. Effective communication exists only if the receiver understands the exact information that the sender intended to transmit.
telegraph
a communication device
telephone
a communication device
microchip
DSL
It's called a global multicast, and you're transmitting to all reachable nodes.
Nerves.
Nikola Tesla
Samuel Morse
if your talking about transmitting ouside of the computer to another or a server that is a few things for home its a networkadaptor inside the PC, and a modem. also to connect more than one to a modem you need a router. to connect many you need a large switch and a domain/server
They can, if you hook them to external speakers, or an FM transmitting device.