the computer control system that drives a bullet train, called {COMTRAC}
an information system called, the Character and Pattern Telephone Access Information Network; CAPTAIN
the existing system
a system for the administration of personnel matters at a company, called {skills inventory system}
an {operation method} of some numerical control machines, called {group control system}
a series of a system of classifying and picking out products
You can take inventory at all hours with a dial up system.
the immune system