Internet of Things (IoT)
(Emerging Technology Course for 1st Year: VTU)
Course Code: 22ETC15H/25H
,Introduction to Internet of Things[22ETC15] Module 1
MODULE -1
Basics of Networking & Emergence of IoT
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, Introduction to Internet of Things[22ETC15] Module 1
1.1 Introduction
• Definition: Computer networking refers to interconnected computing
devices (often referred to as nodes) that can exchange data and share
resources with each other.
Figure 1: Simple computer network
• Basic components of computer networks: The main network
components are
— Computer (clients, servers)
— C hanne1s (wired or wireless)
Interface or connecting devices (Router, Switch, etc)
— Software (Protocols, System Software, Application Software, etc.)
Importance of Computer networks: Today's world relies heavily on data and
networking, which allows for the instant availability of information from anywhere
on the earth at any moment. Presently world depends on data and information-centric
operations, everything right from agriculture to military.
operations relies heavily on information. The main contributions of networks might
make in economic productivity, health care, education, quality of life etc. The main
features/advantages of computer networks are
— Cost-effective resource sharing.
— Fast and reliable way of sharing information and resources.
— Streamline communication
— Provides secured and authorized data storage.
— Provides remote access to data. etc.
1.2 Network Types: Computer networks are classified according to
various parameters. They are
a) Type of connection.
b) Physical topology.
c) Reach of the network.
(a). Type of Connection: There are two types of connection used. They are
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