The difference between communication in the past and present
 In the past, people used several means of communication, most notably: smoke signals, drums, and whistles.Its disadvantages include: significant distraction from individuals, impersonation of individuals, social isolation, and many problems related to privacyThere are several means, most notably social media, emails, blogs, SMS, instant messaging, and satellites.In the nineteenth century AD, more developments occurred and they began to use the printing machine..