The overall handwriting is large. The screen of a large-screen desktop computer is very large. The small screen computer is too small as a whole, and some important files are also small. Large bottles can effectively relieve eye fatigue. In order to protect students' eyes, we choose a desktop computer with a big screen. Universities, scientifically called ordinary institutions of higher learning, are organizations with unique functions. It is an institution of higher learning that is interrelated with social, economic and political institutions, and firmly inherits, studies, integrates and innovates advanced academic knowledge.