Unitary systems concentrate the power within the central government and little or no authority is granted to the component areas. In contrast, federal systems allow first-order civil divisions to have some autonomy, while the central government maintains authority over some areas.
Take a moment to compare and contrast the strengths and weaknesses of each system.
This is a discussion post so i need about a half a page single space with in text citation and references.
Here are good discussions of the differences between unitary and federal governments:
http://www.primohistory.com/Standard%2012.9.3%20Federal%20Confederal%20unitary%20Systems%20of%20Government.pdf https://devry.vitalsource.com/#/books/9781269724821/cfi/0!/4/2/[email protected] :0.125 Page58