Final answer:
Using a fan increases the flow of air and helps to keep a system cool. Proper airflow in a computer system can be achieved by positioning fans strategically in the case and keeping the components clean.
Step-by-step explanation:
Using a fan increases the flow of air: warm air near your body is replaced by cooler air from elsewhere. Convection increases the rate of heat transfer so that moving air
"feels" cooler than still air
. Proper airflow in a computer system is important to keep it cool. This can be achieved by positioning fans strategically in the case to ensure a steady flow of cool air enters and hot air exits. Additionally, keeping the components clean and free from dust can also help maintain proper airflow and prevent overheating.