![]() These included primitive methods, such as signal fires, smoke signals and drums. Throughout history, humans have used various methods to send messages farther than the voice can be heard and faster than a written message could be carried. The term comes from the Greek words tele, meaning at a distance, and graphien, meaning to write. The telegraph is the forerunner of all communication systems today, and many of the principles developed for the telegraph are still in use in modern communication and computer networks. ![]() It is most associated with sending electrical current pulses along a wire with Morse code encoding. ![]() A telegraph is a communication system that sends information by making and breaking an electrical connection. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |