D/add////
D/calculator////
D/communicator////
D/comparator////
D/compare////
D/copy////
D/count////
D/filer////
D/get////
D/guider////
D/interrupt////
D/maintainer////
D/memoriser////
D/receive////
D/run////
D/runner////
D/send////
D/sense////
D/shutdown////
D/startup////
D/suspend////
