Definition
An output signal is like a message sent from one device to another, telling it what to do. Think of it as the device's way of communicating its status or instructions. It's not just electrical; it could be sound, light, or even a physical movement. It's the result of a process or calculation, like the 'send' button on your phone after you type a text. It's a clear indication of something happening or needing to happen elsewhere. This signal prompts a response or action in the receiving device. It's crucial for coordinated functioning between systems.