2.2 Computer-based system
A system of one or more computers, associated software, peripherals and interfaces.
2.3 Integrated system
A combination of computer-based systems which are interconnected in order to allow centralised access to sensor information and/or command/control.
Notes：
Integrated systems may, for example, perform one or more of the following operations：
- passage execution (e.g. steering, speed control, traffic surveillance, voyage planning);
- communications (e.g. radiotelephone, radiotelex, GMDSS);
- machinery (e.g. power management, machinery monitoring, fuel oil/lubrication oil transfer);
- cargo (e.g. cargo monitoring, inert gas generation, loading/discharging);
- safety and security (e.g. fire detection, fire pump control, watertight doors).
2.4 Interface
A transfer point at which information is exchanged.
Note：
Examples of Interfaces include：
- Input/output interface (used for interconnection with sensors and actuators);
- Man/machine interface (e.g. visual display units, keyboards, tracker-balls,and dedicated controls and instruments used for communication between the operator and the computer);
- Communications interface (used to enable serial communications/networking with other computers or peripherals).
2.5 Node
A point of interconnection to a data communication link.
2.6 Peripheral
A device performing an auxiliary action in the system, e.g. printer, data storage device.
2.7 Software
Programs, data and documentation associated with the operation of a computer-based system.
