Why ECU's is important in vehicle?

“Did you know that every modern car has a brain? And it’s called the ECU—Electronic Control Unit!” “In fact, your car might have over 70 ECUs, each controlling a specific function, from the engine to safety systems.” “The Engine Control Unit optimizes engine performance, ensuring you get the most power while saving on fuel.” “ECUs are the reason your brakes stop smoothly with ABS, and your airbags deploy in an instant during an accident.” “Not just safety—ECUs control comfort features like climate control, seat adjustments, and your entire infotainment system.” “And in the future, ECUs will play an even bigger role, powering autonomous driving, advanced safety systems, and connected cars.” “So next time you start your car, remember—there’s a powerful system of ECUs at work, ensuring your drive is smooth, safe, and efficient.” And for more details check out the description.