top of page

information of morse key/telegraph key

-first made in the 1844
-text messages in Morse code 
(dot and dash signals)
-a dot is 1 time unit. 
-A dash is 3 time units.
-The space between symbols 
(dots and dashes) of the 
same letter is 1 time unit.
-take a month to learn
-most often use
during World War II
-most common morse 
code is s.o.s. (call for help)
-s.o.s. actally doesn't 
stand for any word

20240909_122201_edited.png

what devices can be use in school for communication

How it helps for communication?

communication devices

-phone
-smart watch
-laptop 
-computer
-walkie talkie
-A telegraph key
or Morse key
-spin dial phone
-typing machine
-switch
-piano

- communicate with other without being next to them
- faster, easier, and more effective
- we can send text, photo, video all over the world
- translate to another language
- talk to multiple people at the same time
bottom of page