Respuesta :
Answer:
CPU: The "brain" of the computer, tells it what to do, processes everything
Memory: Your memory, what you remember
Motherboard: The body and nerves that connect and hold everything together.
If you want a more technical explanation let me know but to fulfill the requirement "explaining what a computer is to a kindergarten student." it would be better to keep it simple.
The motherboard is a circuit board that connects the CPU to the memory and all the other hardware. The CPU sits on the motherboard (also called the logic board). Buses are circuits on the motherboard that connect the CPU to other components. There are many buses on the motherboard.