What is Morse code?
[[File:International Morse Code.svg|thumb|250px|[[Chart]] of the Morse code letters and [[Numeral system|numerals]]]] [[File:What hath God wrought.ogg|thumb|Message in morse code]] [[File:Seaman send Morse code signals.jpg|thumb|Morse code is still used on ships, using lights]] '''Morse code''' is an old system of [[code|encoding]] messages that is used to send [[telegraph]]ic information using signals and [[rhythm]]. In written communication, Morse code uses ''dots'' and ''dashes'' to represent a limited number of [[alphabet]] [[letter]]s, [[numbers]], [[punctuation]] and special characters of a given message. When messages are sent by sound, radio signals or light flashes, dots are short beeps or clicks or flashes, and dashes are longer ones. For example, [[Wikipedia]] written in Morse code is .-- .. -.- .. .--. . -.. .. .- Morse code is named after [[Samuel Morse]], who helped invent it. It is not used as much today as it was in the 19th and 20th [[Century|centuries]]. [[Teletypewriter]]s were invented in the early 20th century with their own codes and gradually replaced Morse code. Other types of [[technology]] that are easier to use for [[communication]] became even more common. Some [[amateur radio]] operators still use Morse code to communicate and were previously required to learn and pass telegraphy exams to qualify their licenses. The requirements were lifted after 2003.<ref>{{Cite web|title=A Brief History of Amateur Radio {{!}} Marin Amateur Radio Society|url=http://w6sg.net/site/a-brief-history-of-amateur-radio/|access-date=2020-12-28|language=en-US}}</ref> There are different types of Morse code for some different countries. There are three different symbols in Morse code; there's a short one, usually called 'dit', a long one, called 'dah', and the pause. A dah is three times as long as a dit, and the pause has the same length as the dit. Today, Morse codes can be easily generated through smartphone applications or through a web application, which take text as input and outputs the Morse