Hello every angiotensin-converting enzyme . The best part rough internet it is that it is really simple today i and neeraja ar goin to be tellin u the basic unit of the internet the osi stumper or better known now days as the TCP IP model
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Let me climb up with the basis of communication the net profit...
netwrok is interconnection of computers/hardware to provide communication.
in that respect are different types of intercommunicates
If I loss to transfer a phto from my phone to my laptop and then print it out the in all function forms a PAN
A group of computers exchanging info in the same office /department is called LAN
CAN a network which runs far beyod 4 walls of a building is CAN. Godrej may hav CAN
lastly a netwkr of the whole city is MAN
World wide network like in web/telephones are WAN
As seen in the diagram are the different components of a network a shown
Node is any hardware part of network providing user interface.
Backbone is the main cable of the network
Segment is tht character of the network separated by routers or switches etc
Routers we will go on to in detail later
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So why do we use networks its because of the many advantages it provides usIt reduces hardware consequently reducing cost, its allows to access data/run programs on separate computers
But everything has to hav a disadvantage in networks the working of agreement is slower as accessing something over network is slower overly it is much complex รข€¦the most important disadvantage is it becomes more prone to threats
Slide 4 O
Toplogy is way in which individually node is connected to network
Following are a few way
In Bus each nodeis directly connected to the backbone
Adv: hands-down to implement
Disadv Collisions
ring topology each node is connected to eachother in form of a ring.the node can send or receive messages only when it has a token .the token passes from one node to other an dthe node adds on imformation to the token and similarly takes any information relevant to it
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