In capitalism factory owners sat around all day and did nothing while workers were starving and ill doing all the work and getting little of the money. (Capitalism is an economic system where people own and run companies. These companie owners can and will take advantage of the workers and give them a SMALL percent of the money earned.)
In the picture demonstrated above a tax collector gathering the taxes from the company owner and giving it to the people that earned it.Government is in control of what's going. (Socialism is where the government takes money from the business owners through taxes and then redistribute to the people in need.)
In Communism, the Government is in complete control and production is shared equally among people.