DRYOS is a real-time operating system made by Canon and is used in their latest digital cameras and camcorders. Since late 2007, DIGIC-based cameras are shipped using DryOS. It replaces VxWorks from Wind River Systems which has been used before on Digic2 (DIGIC II) and some Digic3 (DIGIC III) cameras. DryOS had existed before and was in use in other Canon hardware, such as digital video cameras an