Network
 Network Architechture
 Network Topology


Bus Topology:

 Ring Topology:

 Star Topology:
Description
  • The bus is the physical cable that connects the computer and other devices:
  • Each devices is connected to the single bus cable through T-Connector
  • A terminator is required at each end of the bus cable to prevent the signal from bouncing back and forth on the bus cable.
  • Two types of devices that provide a common central connection point to all the other devices on the network are a hub and a switch.
Physical Topology
  • A bus network consists of a single central cable (backbone/trunk), to which all computers and other devices connect (node).
  • A cable forms a closed loop (ring) with all computers and devices arranged along the ring.
  • All the computers and other devices on the network connect to a central devices (hub/switch), thus forming a star.
Logical/Data transmit:
  • In a bus network, it tranmit data, instruction, and information (the address of the receiving devices is included) as a series of signal in both directionss where all nodes receive the signal but only intended recipient will accept the signal and the rest will ignore.
  • Data transmitted on a ring network travels from device to device around the entire ring, in one direction (clockwise or anticlockwise) until it reach its destination.
  • Token passing is one method for sending data around a ring.
  • Each devices takes a turn sending and receiving information through the use of a token.
  • Token is a special series of bit that function like a ticket.
  • In star network, data, instruction and information's transfer from one node to another node passes through hub/switch.
  • If the network used hub, the signal will send to all nodes but only intended recipients will accept and the rest will ignore.
  • If the network used switch, the signal will send directly to te intended recipient.