Morse code is a method of sending text messages by keying in a series of electronic pulses, usually represented as a short pulse (called a "dot") and a long pulse (a "dash"). The code was devised by Samuel F. B. Morse in the 1840s to work with his invention of the telegraph, the first invention to effectively exploit electromagnetism for long-distance communication. The early telegrapher, often one who was at a railroad station interconnected with others along miles of telegraph pole lines, would tap a key up and down to send a succession of characters that the receiving telegrapher could read from tape (later operators learned to read the transmissions simply by listening). In the original version, the key down separated by a pause (key up) from the next letter was a dot (or, as it sounded to the telegrapher, a "dit") and the key down quickly twice in succession was a dash (a "dah" or "dit-dit"). Each text character was represented by a dot, dash, or some combination.
In the late 1800s, as new keying technology became prevalent, a somewhat different representation of dots and dashes was used for certain letters in what became known as the International Morse Code or Continental Code. American Morse code, however, continued to be used in the U.S. into the 1960s.
There are various stories concerning how the Morse code was originally developed. According to one account, Samuel Morse went to a printer's shop and counted the amount of printer type the printer had for each letter of the alphabet. He then interpreted these counts as approximations of the relative frequency of each letter in typical English text. He organized the Morse code so that the shortest symbols were associated with the most frequent characters. Thus, for example, E and T, the most often-used letters in the English language, were represented by a single dot and single dash, respectively. The least frequently occurring letters, such as J and Y, and numerals and punctuation marks were given longer and more complex representations. No differentiation was made for uppercase and lowercase.
Morse code offers a slow but reliable means of transmitting and receiving wireless text messages through conditions involving noise, fading, or interference. This is primarily because its simple binary code (key down or key up) allows for an extremely narrow bandwidth. In addition, the human ear and brain make a remarkably good digital receiving device. Nowadays, Morse code is used to a limited extent by amateur radio operators, landline telegraphers, and military radio operators.
Please Help me to create Morse code program on python3 by using tkinter ?
Program Description: A Java program is to be created to produce Morse code. The Morse code assigns a series of dots and dashes to each letter of the alphabet, each digit, and a few special characters (such as period, comma, colon, and semicolon). In sound-oriented systems, the dot represents a short sound and the dash represents a long sound. Separation between words is indicated by a space, or, quite simply, the absence of a dot or dash. In a sound-oriented...
Program Description: A C# app is to be created to produce Morse code. The Morse code assigns a series of dots and dashes to each letter of the alphabet, each digit, and a few special characters (such as period, comma, colon, and semicolon). In sound-oriented systems, the dot represents a short sound and the dash represents a long sound. Separation between words is indicated by a space, or, quite simply, the absence of a dot or dash. In a sound-oriented...
where did the 60% under "variable man. cost" come from? also where did the 45% from "variable nonmanufacturing cost" come from?
Screen Shot 2021-03-17 at 9.57.42 AM.pngScreen Shot 2021-03-17 at 9.57.49 AM.png3 Decoding a Morse Code messageIn this exercise you will decipher a Morse code message sent to Agent 008 by Agent \(007 .\) The last words of Agent 007 were "The future of technology lies in \(\ldots\) " at which point she produced a memory stick containing a MATLAB file ctftmod.mat. The file ctftmod \(.\) mat contains the following:af, bf the denominator and numerator coefficients of a lowpass filter, whose...
I have this section of code for a Morse Code Converter with C# (Visual Studio) that I can't figure out. I have a two-dimensional array containing the character and correlated Morse Code. I need loops to step through the Input message, search through the array to fins the corresponding character and Morse Code, then append the Morse Code to the Morse code string. (Below is the code I need help with. Thanks!) // Set up a loop to 'step through'...
1. What is microphages? 2. Where did it come from? 3. What did they do or its functions? Please cite your source.
1, What is macrophages? 2. Where did it come from? 3. What did they do/ function? Cite your sources.
HOW DOES THE CODE WORK AND PLEASE TELL ME WHERE DID THE NUMBER [J] COME FROM WHEN IT HASN'T BEEN DECLARED IN THE ABOVE STATEMENT MOREOVER KINDLY ALSO DRY RUN THE PROGRAM TO MAKE IT MUCH EASIER TO UNDERSTAND int main() { int i, j, a, n, number[i]; printf("Enter the value of N \n"); scanf("%d", &n); printf("Enter the numbers \n"); for (i = 0; i < n; i++) scanf("%d", &number[i]); for (i = 0; i < n; ++i) { for...
Morse Code Encryption/Decryption Program - Develop and test a Python program that allows a user to type in a message and have it converted into Morse code, and also enter Morse code and have it converted back to the original message.