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What Is IP Address, Types and Address On Internet

This is a very detailed subject, but I will try my best to explain you in the easiest way as possible. Every device which connects to the Internet is assigned with a unique number known as an Internet Protocol (IP) address. IP addresses consist of four numbers separated by periods (also called a 'dotted-quad') and look something like 192.168.0.65. From an IP address, you can identify the region or country from which a computer is connected to the Internet. 

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Typical Home Networks

Before going into the topic, it's essential to understand the basics and how you connect to the Internet. When more than one device are connected to each other, then this kind of setup is called a LAN - Local Area Network. PC to Router, PC to Switch, PC to PC etc. all these kind of setups are known as LAN.

(Pic Ref: CDR)
In most of the Home Networks :

1. Either your PC connects directly to the Internet using a modem.

2. Your PC connects to the Router (which you received from ISP) via Cable and then the Router connects you to the Internet.

3. Your PC connects to the Switch (which your Network Cable Operator has placed either inside your house or outside somewhere), from Switch the cable goes to the Network Cable Operator's office, where the cable connects to the Router (In his office he would be having a Router) and then the Router connects to the Internet.

4. Your Laptop, Mobile etc. connects Wirelessly to the Wireless Router and then the Router connects to the Internet.

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