Typically in a digital controller of a mechatronic system, the arithmetic operations, ADD and SUBTRACT, are performed using hardware. More complex operations including MULTIPLY and DIVIDE may be implemented either by hardware or by software. The software operations can be more than an order of magnitude slower. Compare the use of hardware-intensive controllers (or hard-wired controllers) with software-intensive controllers (or digital computer-based controllers) in terms of factors such as speed of processing, flexibility, possibility of using complex control algorithms, and controller cost. Would you classify a ROM-based controller that does not have programmable memory, as a hard-wired controller or as a software-intensive controller?