I've included my code in the picture below. Best of luck.
''for kids'' i think thats what that mean
Answer:
CPU, input unit, Output unit, memory unit
A prototype<span> is an early sample, model, or release of a product built to test a </span>concept<span> or process or to act as a thing to be replicated or learned from. It is a term used in a variety of contexts, including semantics, design, electronics, and software programming.</span>