Man's Networking

1. In a MAN is it necessary to use an active or passive hub as we see routers in different organizations, working in different cities?
2. Can MAN be an internet(not Internet)?
 3. In strong programming languages, we can use CD ROM and keyboard etc. for outputs e.g. turning the num lock on or ejecting the CD, isn't it a two way communication?

As a metropolitan area network (MAN) is a computer network that usually spans a city or a large campus and usually interconnects a number of local area networks (LANs) using a high-capacity backbone technology, such as fiber-optical links, and provides up-link services to wide area networks (or WAN) and the Internet so there can be Routers come in it.

Yes it is internet.

NO. It is not two ways communication.it is simultaneous execution of many process. Communication comes when two or more devices start their conversation.