What are benefits of telegraph?

Well, no one uses a telegraph in the 21st century. But some disadvantages were lack of direct communication. If you wanted to say something to a friend across the country you'd have to write it out with a stop at the end of a sentence instead of a period. Then you'd take it over to the town telegraph office where they'd translate it into Morse Code. No messages would be private, they'd have to be short, and they could only be sent during the telegraph office's business hours. Also it was unreliable, especially before Marconi invented wireless.

Answered by PHYSICSguru