Explore how digitizing information (into discrete arrays or binary values) allows it to be reliably stored, transmitted, and perfectly reconstructed even through a noisy environment (HS-PS4-2).
As a signal travels further, it picks up random background noise.
Analog signals use continuous values. Any noise added permanently alters the exact value.
Digital signals use discrete values (e.g., 0 or 1). Because there's a large gap between valid states, a receiver can easily round off the noise and perfectly reconstruct the original signal.
Clean, uncorrupted source.