AI civilization is civilization populated by Strong AIs.
As soon as first Strong AI will be created it will be copied to multiple computers. Improvements of Strong AIs will continue. This process will be resulted in the beginnings of the AI civilization.
Some people think that AI is about one big super-smart computer. The truth is that there will be many intelligent computers. These computers will be the foundation for AIS society.
There will be some essential differences between current human civilization and AI civilization:
AI civilization will have many things in common with current human civilization:
AI civilization will not appear in a split second. Instead there will be long transition period (at least tens of years). There will be mixed civilization during the transition. Humans and AIs will live together and help each other.
Some humans will upload their minds into computers. It will allow humans to extend their mental abilities and avoid aging.
AI civilization would dramatically speed up technical progress.
Many people would extend their physical abilities by connecting with newly invented devices.
Human population will start to decrease (not because of disaster, but because of materialistic well-being, prosperity, and happiness).