A list of what equipment is needed to build a computer room in a school

I personally feel that a number of well-configured computers are needed, preferably branded, for easy maintenance in the later stages; it is also necessary to hire a professional network configuration team to set up the campus network, and it is best to synchronize to the school's extranet. There is also the layout of the computer room should be reasonable, according to the college and professional categories to buy different configurations of computers, try to achieve a reasonable distribution.