classes:  lecturer. Instead of investing in the machine room, the school should upgrade the wifi system so that students can access wifi well even if they have to sit in the classroom, normal room, not the machine room.  curriculum. Instead of investing in the machine room, the school should upgrade the wifi system so that students can access wifi well even if they have to sit in the classroom, normal room, not the machine room.  facility. Instead of investing in the machine room, the school should upgrade the wifi system so that students can access wifi well even if they have to sit in the classroom, normal room, not the machine room.  general. Instead of investing in the machine room, the school should upgrade the wifi system so that students can access wifi well even if they have to sit in the classroom, normal room, not the machine room.