Telegraph equipment refers to the tools and devices used for sending messages over long distances using electrical signals. The primary components include the telegraph key, which is used to send Morse code, and the telegraph receiver, which interprets the signals. These devices were essential for communication before the advent of modern technologies like telephones and the internet. The Morse code system, developed by Samuel Morse, translates letters and numbers into a series of dots and dashes. Telegraph equipment played a crucial role in connecting people and businesses, enabling faster communication across vast distances, especially during the 19th and early 20th centuries.