Differences between democratic and authoritarian

Describe the differences between democratic and authoritarian. Identify and research one example of a democratic system (excluding the US) and one example of an authoritarian system.
https://www.cia.gov/the-world-factbook. What are some of the key characteristics of the political system, legal system, and economic system of each country? How are these countries similar to one another? How are they different?
https://science.jrank.org/pages/7513/Authoritarianism-Overview.html
https://openstax.org/books/american-government-3e/pages/1-1-what-is-government (Chapter 1 only)