What were the major inventions in terms of communication during the 20th cent

@sand102 (368)
India
December 20, 2006 8:41am CST
What were the major inventions in terms of communication during the 20th century?
1 response
j_thomas
@j_thomas (957)
• India
20 Dec 06
The major invention in 20th century is computer and Internet technogies