1. The processing capacity of microprocessors means the length of each word (e.g., 8, 16 or 32 bits) which the accumulator of the arithmetic and logic unit can process in a single micro-instruction cycle.

2. The processing capacity of microcontrollers or microcomputers means the length of each word (e.g., 8, 16 or 32 bits) which the accumulator of the arithmetic logic unit can process in a single micro-instruction cycle.