There are many alphabet systems used to send messages throughout history. The most relevant and recent one would be known as Morse code. Any language's alphabet can be used to send messages as well.
It was an early form of electronic communication where Morse Code was used to send messages by wire.
No. Pigeons are no longer needed to send messages in combat.
invisable ink
1861
Morse code is an audio code (or blinking light code), it has nothing to do with flags.When flags are used to send messages, this is called semaphore, so they would be "semaphore flags".See the related links below.
A telegram, a telephone, a computer, a semaphore, a telegraph.
Signals can be sent by flaghoist, signal lamp ("blinker"), flag semaphore, radiotelegraphy, and radiotelephony.
People used the Morse Code to send messages from far distances Morse code was used by how long you hold it down.
Semaphores are any means of communication when flags or lights are employed to communicate . For example , semaphore flags are used to convey messages from one ship to another and traffic lights are a means in which to communicate a signal to traffic . See related link below .
The Morse Code was invented because we can send messages to each other like s.o.s
There are many alphabet systems used to send messages throughout history. The most relevant and recent one would be known as Morse code. Any language's alphabet can be used to send messages as well.
It was an early form of electronic communication where Morse Code was used to send messages by wire.
'Send messages' in French is 'envoyer des messages'.
Unfortunately you can't send toy codes you can only send messages or friend requests.
to send error messages to send control messages
a glass medium to send messages