How has the computer changed the way people communicate with each other?

It was first the email system, and then the internet which gave us access to information despite taking longer time to respond, and then websites which helped business and private individuals, then mobile phones making communication easier, then social media where its about describing yourself and communicating through photos and stuff, then smartphones which not only helped in the communication system but also online banking, online shopping etc, and then Skype with which we can now have a video conference with colleagues and families no matter where they are.