Final answer:
Hot logic with decoders refers to active decoding, where the decoder actively drives the output when input conditions are met. On the other hand, cold logic involves passive decoding, relying on external components like pull-up resistors to determine the output state, thus using less power.
Step-by-step explanation:
The terms hot logic and cold logic with decoders refer to how they respond or activate outputs based on their design. The correct answer is b: Hot logic refers to active decoding, while cold logic involves passive decoding.
In hot logic, the active decoding means that when a specific input condition is met, the decoder actively drives the output to a strong logic state, either a high voltage (logic "1") or a low voltage (logic "0"). This is often used in environments where speed and certainty of output states are critical.
In contrast, cold logic, or passive decoding, relies on external factors such as pull-up resistors to determine the state of the output when specific conditions are met. This method uses less power and is suitable for applications where power consumption is more critical than speed.