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OSI Reference Model

Open System Interconnect (OSI) Model: In 1978 International standard organization introduced a model called open system interconnection.    OSI is not a protocol, it is a model of under…

Transmission Modes & Transmission Types

Transmission modes ·          The way in which data is transmitted from one device to another device is known as transmission mode. ·          The transmission mode is also known as t…

a1.3 Network Topology and Architecture

2. Network Topology Each computer or device in a computer is called a node. The way in which the connections are made is called the topology of the network. Network topology specificall…

a1.2 Types of Computer Network

1.3 Types of Computer Networks The three basic types of computer networks are as follows:   1)    Local Area Networks 2)    Metropolitan Area Networks 3)    Wide Area Networks 4…

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