The John Deere 100 series is a line of entry-level lawn and garden tractors. The models in this series are designed for homeowners with small yards who need a basic tractor for mowing and light yard work. The 200 series is a step up from the 100 series, with more powerful engines and additional features like cruise control and power steering. These tractors are still designed for light duty work, but they can handle slightly more demanding tasks than the models in the 100 series.