Volunteer Computing is a distributed computing model where individuals contribute their computer's processing power to help solve complex problems. Participants typically download software that runs in the background, utilizing idle CPU time to perform calculations for scientific research, climate modeling, or medical studies. This approach allows researchers to access vast amounts of computational resources without the need for expensive supercomputers. Projects like SETI@home and Folding@home have successfully harnessed the power of volunteer computers, enabling significant advancements in fields such as astronomy and biomedicine.