Plato's communism and compare it with modern communism.

Plato's theory of communism was his conception of justice. He believes that his communism is to classify reason and appetite. Plato's communism is based on property, family instincts and personal life. He believes that family and property would distract man's attention from his duty/obligation toward the state. As family and property is the main source of disagreements in the society. To make an ideal state, the ruling class and guardian class should surrender their family and property. 

Plato's communism of property is in no way related to modern communism. Because there is nowhere mention of socialization of the mean of production. Plato is only concerned with the one mode of production, that is property that has to be socialized. The land and its production are in the hands of the farmers. So only the guardian class is deprived of property, not the producing class. According to Plato, Producing class is powerless and also dominated by appetite. So it may create chaos if they were too deprived of property and family, but the guardian class will maintain the strict supervision so that they do not become too rich or too poor. 

In terms of similarities between Plato's communism and modern communism. But the convergent is superficial like both consider that private property is evil, both belief in the concept of class. But in-depth there are wide gaps. In modern communism, the state is bad and the society is divided into two classes the proletariat and the bourgeoisie, classification based on wealth and their nature is always antagonistic. The purpose of communism is to make a stateless society with only one class in it. Whereas in Plato's communism, state is the most important institution and provide a good life. Society is divided into three classes their classification is based on their soul quality, Purpose is to make an ideal state by class specialization and non-interference into each others business to maintain peace and harmony.