Communication and Internet Technology

  Communication and Internet Technology Isolated Networks #  Requirement for Network communication: Sender Receiver Transmission Mediu...

 Communication and Internet Technology


Isolated Networks

#  Requirement for Network communication:

  1. Sender

  2. Receiver

  3. Transmission Medium

  4. Protocol

  5. Message

Network Topology:

There are several possible ways for computers to have a local network. These are;


a. P2P Network (A point-to-point network)

  1. Direct communication from one computer to another computer.

  2. Connected with the end-point system.

  3. A dedicated link between two networks.


b. Bus Network

  1. Different computers connected by a single line of cable.

  2. The indirect connection between computers in between end-point system.

  3. The main single cable receives and sends messages from one node to another node.

c. Ring Topology

  1. In this topology, each computer is connected to its adjacent two computers.

  2. The connection is in the formation of a ring, where each computer is connected with another.

  3. Communication between any two computers goes in the same direction.

d. Star Topology

  1. The computers in this topology are point-to-point connected with a central device.

  2. The communication channel between two computers goes through the central device, where it can also act as a ring topology if properly installed.

  3. Dominant configuration as it allows to communicate with other networks.

Key points:

  • Bus and Ring typologies were the earliest network configuration, where connected computers would have been workstations and others would be servers.

  • Mesh topology (where each and every computer is connected with each other) would be difficult to implement because of the number of cables required to install.

  • The most widely used network system nowadays would be Star Topology as it is easier to communicate with other networks.  


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Alevel Note: Communication and Internet Technology
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