1. The first question asks: What is a computer system? 2. A computer system is a combination of hardware, software, and peripheral devices that work together to perform computing tasks. It includes the central processing unit (CPU), memory, input/output devices, and storage. 3. The formula or concept here is understanding the components and their interaction, not a mathematical formula. 4. Important rules: A computer system must have input, processing, storage, and output components to function effectively. 5. Intermediate explanation: The CPU processes data, memory stores data temporarily, storage holds data permanently, and input/output devices allow interaction with the user. 6. In simple terms, a computer system is like a team where each part has a role to play to complete tasks efficiently. 7. Final answer: A computer system is an integrated set of hardware and software designed to input, process, store, and output data to perform useful tasks.