Okay kiddo, so imagine you and a friend are playing a game together. You both need to take turns and make the same moves at the same time or else the game won't work properly. This is kind of like how computers work in lockstep.
Lockstep is a way that computers can work together in sync, like how you and your friend work together in the game. In lockstep, two or more computers work together by doing the same things at the same time. This helps make sure that everything works properly and nothing gets messed up.
Lockstep is often used in important computer systems, like in airplanes or rockets, to make sure everything is working correctly and safely. It's kind of like having a buddy system for computers!