An atom is like a very tiny Lego block that is used to build things called system on chips. A system on chip is like a small computer that does different jobs all in one tiny device. It's like having a tiny toolbox that has everything you need to fix something. The atom Lego block is very important for making these tiny computers work because it helps them do their different jobs faster and better. So, just like how you need the right Lego pieces to build something, engineers use the atom Lego block to make these cool mini computers called system on chips!