Final answer:
The product of the length and width of a desktop system case is called its area, which is expressed in square units like m².
Step-by-step explanation:
The length of a desktop system case times its width is called its area. When calculating the area of a rectangle, we multiply its length by its width, obtaining a result in square units (like square meters, m²). This concept is a basic principle of geometry. The volume, however, refers to the amount of space occupied inside a three-dimensional object, and it is calculated by multiplying the area of the base by the height of the object. For computers and technology, the term form factor is sometimes used, but it refers to the physical specifications of major system components and is not the correct term in this context. The perimeter is the total distance around the edge of a two-dimensional shape, not the product of length and width.
The length of a desktop system case times its width is called its form factor. The form factor of a system case refers to its physical dimensions and layout, typically measured in terms of length and width. It is an important specification to consider when choosing components for a computer system, as it determines compatibility and the available space for expansion.