Educational institutions with large numbers of programmed lecture theatres have always had the problem of ensuring that the correct pieces of audiovisual hardware are available and in good working order at the required time and place. It is also essential that the equipment works to the teacher's satisfaction throughout the lecture period. It may also be necessary to make the same equipment available at another location almost immediately after the conclusion of a lecture, with little time available for setting up and ensuring all the equipment is functional.
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