Shipping container and modem: what they have in common
- Step 1. Shipping container — is used in — Truck. A container moves from ship to truck without being unloaded.
- Step 2. Truck — has part — Air brake. Air brakes, as on trains.
- Step 3. Air brake — evolved into — Anti-lock braking system (ABS). Anti-skid systems first appeared in aviation and on railways.
- Step 4. Anti-lock braking system (ABS) — has part — Microprocessor. A control unit.
- Step 5. Microprocessor — includes — Digital signal processor. A specialized processor.
- Step 6. Digital signal processor — is part of — Modem. Signal processing in high-speed modems.