Computer software and hardware for USE IN DETECTING THE OCCURRENCE OF ONE OR MORE PRESELECTED CONDITIONS RELATING TO POINT-OF-SALE COMPUTER SYSTEMS USED IN THE HOSPITALITY AND RETAIL INDUSTRIES AND PROPERTY MANAGEMENT COMPUTER SYSTEMS USED IN THE HOSPITALITY INDUSTRIES, INCLUDING SYSTEM UPTIME AND DOWNTIME, SYSTEM SECURITY, GENERAL SYSTEM PERFORMANCE, AND SYSTEM MAINTENANCE, FOR RESPONDING TO SUCH CONDITION OR CONDITIONS, AND FOR PROVIDING NOTIFICATION OF SUCH CONDITION OR CONDITIONS