Windsor school's council wants to minimize the school's average yearly expenditures on outdoor security cameras and so is considering replacing the analog cameras currently in use with miniaturized digital megapixel IP cameras as the analog ones begin to wear out after years in the harsh outdoor environment. Compared to analog cameras, miniaturized digital megapixel IP cameras provide higher video resolution in a digital format that can be quickly accessed throughout a computer network, recorded in versatile digital storage devices, and accessed via mobile phones. Its small size also allows it to consume significantly less energy and enables a price point no greater than that of the old analog cameras. Moreover, the costs associated with the conversion of analog cameras to these new digital IP cameras would be minimal.
Which of the following would it be most useful to know in determining whether switching to miniaturized digital megapixel IP cameras would be likely to help minimize Windsor's yearly maintenance costs?