Computer - Internet and Intranet

In this chapter, we will see what is Internet and Intranet, as well as discuss the similarities and differences between the two.

Internet

It is a worldwide/global system of interconnected computer networks. It uses the standard Internet Protocol (TCP/IP). Every computer in Internet is identified by a unique IP address. IP Address is a unique set of numbers (such as 110.22.33.114) which identifies a computer’s location.

A special computer DNS (Domain Name Server) is used to provide a name to the IP Address so that the user can locate a computer by a name. For example, a DNS server will resolve a name https://www.tutorialspoint.com to a particular IP address to uniquely identify the computer on which this website is hosted.

Internet is accessible to every user all over the world.

Intranet

Intranet is the system in which multiple PCs are connected to each other. PCs in intranet are not available to the world outside the intranet. Usually each organization has its own Intranet network and members/employees of that organization can access the computers in their intranet.

Each computer in Intranet is also identified by an IP Address which is unique among the computers in that Intranet.

Similarities between Internet and Intranet

• Intranet uses the internet protocols such as TCP/IP and FTP.
• Intranet sites are accessible via the web browser in a similar way as websites in the internet. However, only members of Intranet network can access intranet hosted sites.
• In Intranet, own instant messengers can be used as similar to yahoo messenger/gtalk over the internet.

Differences between Internet and Intranet

• Internet is general to PCs all over the world whereas Intranet is specific to few PCs.
• Internet provides a wider and better access to websites to a large population, whereas Intranet is restricted.
• Internet is not as safe as Intranet. Intranet can be safely privatized as per the need.

_{See more on Computer Tutorial
Computer Overview}

Computer Fundamental Tutorial

Computer Application 

Computer - Generation

Computer - Type 
Computer - Components
Computer - CPU 
Computer - Input Devices
Output - Devices 

Computer - Memory 

Random Access Memory

Computer Read Only Memory
Computer - Motherboard 

Computer - Memory - Unit

Computer - Port 
Computer - Hardware
Computer - Number System 

Computer - Software

Computer - Number System Conversion
Computer - Data and Information

Computer - Network 

Computer - Operation System 
Computer - Internet and Intranet  

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