The document discusses the evolution of communication technologies over time, from early visual and oral methods to modern digital technologies. It describes several ancient visual communication methods like smoke signals and homing pigeons. It then covers the development of print media with the invention of the printing press. The rise of electrical telegraph and telephone is discussed next. The advent of radio, television, and computer networks fundamentally transformed communication. Modern technologies like the internet, email, smartphones, and social networking now dominate how people connect and share information globally.