The new library of Sias International College of Zhengzhou University and the subway station store of Erqi Square of Zhengzhou Railway Station. Because the new library of Sias International College of Zhengzhou University is equipped with Apple computers for students to use for free, and the subway station store of Erqi Square of Zhengzhou Railway Station is convenient for people to use computers for free, so the places where Zhengzhou uses computers for free are the new library of Sias International College of Zhengzhou University and the subway station store of Erqi Square of Zhengzhou Railway Station. Zhengzhou, known as Shangdu in ancient times, is the capital of Henan Province, a megacity, the core city of Central Plains urban agglomeration, and an important central city in Central China determined by the State Council.