Describes a computer which is connected to the Internet or to some other communications service – i.e., not simply with the cable plugged in, but has established a connection to a larger network (e.g., by dialing up).
Available over, or delivered from, the Internet.
Connected to the Internet.
Available on a computer system, even if not networked.
Describes a system that is active, particularly building facilities (such as power) or a factory or power plant.