What is the use of IP address in computer and how it works

Do you know what IP Address is used for? You must have heard about it but most of the billions of computer users will not know about it. An IP address is a passport to the Internet for you. It is a network address for your computer, so the Internet knows where to send your email, data and information. In fact, 98% of people using computers are not yet aware of what the function of an IP address is.

what is the use of IP address in computer

IP Address is an attractive product designed for modern computer technology designed to allow a connected computer (or “smart” device) to communicate with the Internet or any other device. An IP address literally allows it to connect with billions of different types of digital devices that are connected to the Internet. Because, just as you need a mailing address to receive a mail letter from a friend, one computer needs an IP address to communicate with another computer.

What is the use of IP address in computer 

An IP (Internet Protocol) address is an address of your network hardware. It helps connect your computer through networks and other devices around the world. An IP address consists of numbers or characters.

An example of an IP address: 504.453.14.517


All types of devices that are connected by an Internet connection all have a unique IP address, which means that billions of devices require an billions IP address. Therefore these requirements are met by the new IP Version IPv6.

Today there are two IP versions: IPv4 and IPv6. IPv4 is an older version that has space for more than 4 billion IP addresses. However, the new version IPv6 can provide trillions of IP addresses to meet the needs of all Internet users and devices.

The IPv4 version is used to configure IP addresses to a numeric value (number), which can conflict with other IP addresses. But new IPv6 Version providing a unique IP address to the billions of users in the world by using Hexadecimal Method.

Example of IPv6 IP Address: 5ggr: 1927: 5757: 6: 500: t6tt: tc56: 95vt

Types of IP Address 

There are some types of IP addresses such as Private IP Addresses, Public IP Addresses, Static IP Addresses and Dynamic IP Addresses. Now let’s talk about them one by one:

    Private IP Address 

    A private IP address is the address of your device that is connected to your home or business network. If you have a few different types of devices connected to an ISP (Internet Service Provider), then all those devices will have a unique private IP address. This IP address cannot be accessed from the devices outside of your home or business network.

For example: 

what is the use of IP address in computer

Private IP addresses are not unique because there are only a limited number of devices on your network. So you can know the private IP address of your device using some techniques. If you use Windows, for this you go to Command Prompt and enter Command ipconfig. If you are a Mac user, you need to type Command ifconfig in your terminal app to know it.

If you are using an Internet service on a mobile phone, you can go to your WiFi settings to find out its IP address. You can get your IP address by clicking the ‘i to’ button next to the network to which iOS users are connected. Android users can know this by clicking on the network name in their WiFi settings.

    Public IP Address 

    Your public IP address is the main IP address to which your home or business is connected to the network. This IP address connects you to the whole world, and is a unique option for all users. To find out your public IP address, all you need to do is visit the SupportAlly site in your browser, and it will show you all the information related to your public IP address and other browsers.

    Static and Dynamic IP Address 

    All Private and Public IP addresses can be either static or dynamic. The IP addresses that you manually configure and fix on your device’s network are called Static IP addresses. Static IP addresses do not change automatically.

When you set up the router with your Internet, a dynamic IP is automatically configured and assigns an IP address to your network. This distribution of IP addresses is done by the Dynamic Host Configuration Protocol (DHCP). DHCP can be your Internet router that provides an IP address to your network in your home or business environment.

Why is an IP Address Used?

An IP address assigns an identity to anybody networked device. Just as they need to have a selected physical location to spot a home or office with an identifiable address, within the same way different devices during a network are differentiated the IP addresses one from others.

for example. If I even need to send a package to my friend who lives in another country. Then for this I required to know about its exact location.

Only the receiver’s name isn’t enough, it must even have a selected address, which is written or attached thereto package, in order that the package are often easily accessed by it. You can use the phone book to ascertain the address.

If data is shipped to the web with the assistance of process. At an equivalent time, rather than a phone book, your computer uses DNS servers, to seem up the hostname in order that its IP address are often found.

For example, when a user enters a website such as www.realwebinfo.com in a browser, then a request is sent to the DNS servers to load the page from which that DND server is called that hostname (realwebinfo.com) to find its corresponding IP address (

Without attaching an IP address, the user’s computer cannot even imagine what they’re after and what they need to seek out.

History of IP Address

Currently, two IP addresses are used in this world of Internet. IPv4 and IPv6. The original version of IP Address was developed by Arpanet in 1983.

The IPv4 address is 32 bits. In which 4,297,967,296 address space is limited. Private networks (18 million and 1M = 10, 00,000) and Multicast Addressing (270 million addresses) are reserved for certain addresses in IPv4.

IPv4 is usually presented as Dot-Decimal Notation. Which consists of 4 counted points, and each range is divided as points by 0-255. Each part is made of 8 Bits (Octet).

 In the initial phase of the Internet Protocol, the network number was a maximum of eight. The method allowed only 256 networks. But soon 1981 independent and modern network IPv4 was created to solve this problem which is also currently used.

 But due to lack of available IP address due to increasing internet users over time, in 1995 IP address 132 was redesigned using the system known as Internet Protocol 6. The IPv6 technology went through various testing processes until the year 2000. When commercial production started.

Currently, both IPv4 and IPv6 are used in modern devices. Due to technical changes in both IP Versions, variation can be seen in the IP Address Formation.

IPv5 between IPv4 and IPv6 was based on the 1979 Experiment Internet Protocol Stream. Although IPv5 was never launched.

The IP address is divided into different classes based on functions.

Class A

The range of this IP address ranges from -1.0.0 1 to It is a large network that is equipped with multiple devices.

Class B

Range of this IP address ranges from – to And it supports medium size network

Class C

Range of this IP address ranges from to And it is a small network consisting of less than 256 devices.

Class D

Range of this IP address ranges from – to Which is reserved for the Multicast group.

Class E

Range of this IP address ranges from to This is a future technology used on which research and development work is being done.

How to know IP address

Different devices and operating systems require unique steps to hunt out the IP address. By the way, to urge it (Public IP Address and private IP Address) there are different steps, which we’ll know further.

    To know Public IP Address

    It is very easy to search out the IP address of your router, that you’ll use for any sites like WhatsMyIP.org, or WhatIsMyIPAddress.com. These sites can work with all network-connected devices that support an online browser, like smartphone, iPod, laptop, desktop, tablet, etc.

    To know Private IP Address

    By the way, it’s not very easy to recognize the private IP address of a particular device.

In Windows, you’ll address the IP address of your device via prompt , that you simply only got to use ipconfig command.

Accordingly For the Linux users required to launch a terminal window in their system and enter command hostname – I (which uses capital “i”) ifconfig, or ip addr show.

Whereas in macOS, you’ll use the command ifconfig to get to know your local IP address.

In iPhone, iPad, and iPod touch devices you’ll see the private IP address through the Settings app within the Wi-Fi Menu. To see this, you’ve got to tap the tiny “i” button which is next to the network to which you’re connected.

    To know local IP address in Android devices

    Go along with these steps of Settings> Wi-Fi, or Settings> Wireless Controls> Wi-Fi settings. You have to tap on the network on which you’re on, which shows you all the knowledge of the network which also features a private IP address.

Versions of IP Address (IPv4 Vs IPv6)

IPv6 is an advanced version for IP Address and it will provide maximum and maximum IP address for our today and future. While IPv4 Version only supports a maximum of 4.3 billion unique IP addresses, IPv6 can in principle create much more IP addresses that will never expire.

The IPv6 version consists of eight groups of four hexadecimal digits for IP address. If there are four zeros in any of its groups, then it can be minimized by using the colon to replace those zeros. Here is an example of IPv6:

2003: 0dc7: 65b7: 0000: 0000: 9f2g: 0480: 9226 

      Some Important Feature of IPv4 Vs IPv6



IPv4 is a 32 bit IP address.

IPv6 is a 128 bit IP address.

Is a numeric address, its binary bits separated by dot(.).

This is an Alphanumeric address, whose binary bits are separated by a colons (:). It also includes hexadecimal.

Its header field is 12 in number and header files are 20 in length.

Its header field is number 8 and header files have a length of 40.

IP addresses are divided into three (unicast, broadcast and multicast) segments.

There are three types of IP addresses unicast, multicast and anycast.

This IP address consists of five classes Class A, Class B, Class C, Class D and Class E.

It provides facility to store IP address in unlimited numbers.

Extensive use of NAT (Network address translation) tools that allow a single NAT address.

Due to its large address space, it provides direct addressing facility.

Before communicating with any other system, a newly installed system has to be configured.

Configuration is optional, depending on the tasks required

This allows us to store 4 billion IP addresses.

About 340 undecillion IP addresses can be stored in it, which is very much.

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In the end

Through this article, we have tried to give you complete information about “What is IP Address”, we sincerely hope that this information will prove very useful for you if you have any suggestions related to this article. If so, you can access it through the comment box. You must share this information on your friends and social media. Thank you!


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