The telegraph machine was invented in the 1800's and kickstarted the telecommunications revolution.
- The definition of a telegraph is an old-fashioned method of sending messages along a wire service by converting a message into electronic impulses.
A system that sends messages via wire, computer and satellites is an example of a telegraph.
- To telegraph is to send someone a message electronically, or to convey a message using body language or other non-verbal cues.
- When you send someone a message using a wire service, this is an example of a situation where you telegraph the person.
- When you frown to signify disapproval, this is an example of a situation where you telegraph your disapproval.
- Obs. any signaling apparatus
- an apparatus or system that converts a coded message into electric impulses and sends it to a distant receiver: originally, Morse code signals were sent using a key that opened and closed the circuit to activate an electromagnetic sounder, but now teletypewriters, computers, radio and microwave signals, satellites, and lasers are used
Origin of telegraphFrench télégraphe: see tele- and -graph: origin, originally used of a semaphore
- to send (a message) by telegraph
- to send a telegram to
- Informal to signal (an intended action, decision, etc.) unintentionally to another, as by a gesture or look
- A communications system that transmits and receives simple unmodulated electric impulses, especially one in which the transmission and reception stations are directly connected by wires.
- A message transmitted by telegraph; a telegram.
verbtel·e·graphed, tel·e·graph·ing, tel·e·graphs
- To transmit (a message) by telegraph.
- To send or convey a message to (a recipient) by telegraph.
- a. To make known (a feeling or an attitude, for example) by nonverbal means: telegraphed her derision with a smirk.b. To make known (an intended action, for example) in advance or unintentionally: By massing troops on the border, the enemy telegraphed its intended invasion to the target country.
- te·leg′ra·pher te·leg′ra·phist
(third-person singular simple present telegraphs, present participle telegraphing, simple past and past participle telegraphed)
From French tÃ©lÃ©graphe.
telegraph - Computer Definition
From the Greek tele, meaning far off, and graphos, meaning written. See also Hellenologophobia. 1. An apparatus or process for communicating information over a distance by coded signals. Simple telegraphs employ smoke signals, drums, mirrors, flags, fires, lanterns, and mechanical semaphores. 2. The electric telegraph was invented by Samuel F.B. Morse (1791
A low-speed communications device that transmits up to approximately 150 bps. Telegraph grade lines, stemming from the days of Morse code, cannot transmit a voice conversation. In 1843, the U.S. Congress authorized USD $30,000 to build a telegraph line between Baltimore and Washington, DC. The wire was strung onto 700 poles which were placed approximately 300 feet apart. On May 24, 1844, at the U.S. Supreme Court in Washington, Samuel Morse tapped out "What hath God wrought" via telegraph to his assistant Alfred Vail who was waiting at a Baltimore railroad station, some 40 miles away.