Introduction – How Machines Talk to Us
When a fire alarm rings, you know there is danger.
When your phone vibrates, you know someone messaged you.
Machines cannot speak in words like humans, but they communicate using alerts such as:
- Sounds (buzzers, alarms, beeps)
- Lights (LED flashes, indicator lamps)
- Vibrations (phone notifications, game controllers)
These alerts allow us to take action quickly, especially in safety-critical situations.