A host (also called a client) does this. The device that provides the information a host is looking for is called a server.
online
network operating system (NOS)
It is simply a network of computers connected together by different communication channels that allow sharing of data and information.
A telecommunications network that allows computers to exchange is known as a computer network. The internet is a worldwide area of connected computers that uses the internet protocol suite to serve and connect billions of users.
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A node is a device connected to a network such as a computer or a game console. (Each device connected to a network is referred to as a node. A node can be a computer, printer, game console, or router.)
What one computer can do is tell you if another device is connected to the same network and is switched on. If a computer has been connected to a network and the network administrator has electronically asked who's connected and what are you doing then more detailed information is collected.
Server.
Basically your computer on the intranet is connected to a server which is connected to the internet. Your computer would have limited access the internet (or none at all) but you are connected to all other computers on the network allowing you to share information with others on the network (intranet) but not allowing you to download music and such from the internet.
Personal Computer is the computer that is not connected unto any other computer. Network Computer are computers that are inter-connected with each others. Network Computer can access any other computers files/data from one another.
This is usually used to describe the Internet. A few computers connected together is a computer network. A few computer networks connected together is a network of networks.
A node
Any computer which is connected to network and has unique ip address for the network.