Placement for individual use. Placement for small group use. Placement for classroom use. Position computers away from direct sunlight to prevent eye discomfort from window glare. Also avoid glare from overhead lights.
Tile floors are better than carpets to avoid problems from dust.
Air conditioning and air filtering is important. A white board with markers should be used in the vicinity of a computer instead of a chalkboard to prevent chalk dust from damaging the equipment. Use a power strip with surge suppression to eliminate the possible tangle of cords and wires from the computer, monitor, and other peripherals. Comfortable desks and chairs should be used with the computers. If a computer classroom or learning center is being set up, a room with plenty of electrical outlets and open wall space for posters is desirable.