Other forms: Morse codes
Morse code is a form of communication that represents letters, numbers, and spaces using dots and dashes. Telegraph machines send and receive Morse code electronically.
The American inventor Samuel Morse helped develop both the telegraph and the code used for sending telegraph messages. Morse code was named after him in the 19th century. Prior to the system's invention, it frequently took weeks for messages to reach their destination. The telegraph, and Morse code, made it possible for people to send and receive messages in minutes.