(Our school now has two teaching buildings (No. 1, 2, No. 1), a student computer room, a multimedia classroom, and an electronic classroom preparation room, which are connected by a router and five automatic switches to form a small local area network. In addition, some units such as the principal's office, library, teaching office, and general affairs office have been equipped with computers, which are distributed within a radius of 100 meters. The equipment selection and cost of the network are based on this scheme.)
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