Communication Types of history

Communication Type	What was it?	When was it used?	What did it replace?	What replaced it?
The Pony Express 24 hours...rain or shine! MAP	information transportation Via horse from St.Jose to San Francisco	Transportation of information	Carriage mail services	The telegraph made a faster and cheaper method to send information.
Morse Code	Alphabet or letters represented by combinations of long and short light signals or sound	Communication (Not every nation had the same code)	Horse mail express	Satellite systems for more global interactions.
Semaphore	Variable or data type that control access to a resource through multiple processes	Control the access of a resource	Shutter Telegraphs	ASCII system
ASCII	The use of 0 and 1 and letters A to F that represent text.	To create an identification for text	Semaphore systems	?