Page 15 - Computer Class 08

The tree network looks like a tree structure. In tree

topology network, one central hub and multiple
secondary hubs are used. The central hub is an active
hub. The cable TV network is an example of tree
topology. In this network, main cable is divided into
branches and each branch is further divided into smaller
branches and so on.

3. Networks Based on Architecture

Architecture of a network can be defined as the structure and organisation of the
computer’s hardware and software. It can be client-server network and peer-to-peer
(P2P) network.

8 Client–Server Network

A client-server network is a computer network in which one
centralised, powerful computer (called the server) is a hub to
which many less powerful personal computer or workstations
(called clients) are connected. The clients run programs and
access data that are stored on the sever.

8 Peer–to–Peer (P2P) Network
Peer-to-peer computing or networking is a distributed
application architecture that partitions tasks or workloads

between peers. Peers are equally privileged, equipotent
participants in the application. They are said to form a peer-
to-peer network of nodes.

4. Networks Based on the Transmission Media

Transmission media refers to the way data is transferred from one node to another on a
network. The computers in a network can be linked by cables. The three types of cables
used to network computers are twisted pair cables (regular phone lines), coaxial cables
and fibre-optic cables. For longer distances where cabling is not practically possible
radio waves, microwaves or satellites are used to transmit data.

Twisted Pair Cable Coaxial Cable Fibre-optic Cable

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