Difference Between the Internet and the World Wide Web.

The Difference between Internet and the world wide web.
Applications and Protocols of Internet.
The World Wide Web.
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Vakrio Technologies.

Transcript

1. Internet & the World Wide Web Understanding the Fundamental Differences Between Internet & the World Wide Web. Vakrio Information Systems.
2. Key Points • We'll learn the very basic differences between internet and word wide web. • What internet really is and the primary protocols associated with internet? • How internet is different from the world wide web? • And what really is world wide web?
3. The Computer Network • A Computer physically connected through a cable or any other medium to other computers creates a computer network. Computers are primarily connected to other computers to establish a communication link.
4. Internet is a network of networks • The internet is a network of networks or simply a connected cluster of computers with each other, that's the simplest form.
5. Millions of connected computers • Geographically separated and connected computers forms a global world wide network. Computers can now communicate with each other across the continents.
6. Communications protocols • Computers need protocols to communicate with each other. A language that computers understand and use to communicate.
7. Protocols are set of agreements • Protocols define the communication between one point to another point. The every essence of communication is the protocol. Both ends of computer network needs to agree with the protocol. It's the grammar of communication.
8. Computer Hardware, Software & Communication Protocols = Internet • On a very low level we can now define the internet as the combination of computer hardware, software and communication protocols. This is a very abstracted definition.
9. Common Protocols • IP, TCP, TCP/IP, SMTP, VOIP, HTTP, FTP are some of the widely used major protocols used in computer network communication.
10. Protocols... IP Internet Protocol TCP/IP Transmission Control Protocol/Internet Protocol SMTP Simple Mail Transfer Protocol POP Post Office Protocol VOIP Voice over Internet Protocol HTTP Hyper Text Transfer Protocol FTP File Transfer Protocol
11. Communication is Carried out in Packets • Regardless of the protocols, the communication is carried out in packets of data. • Data is broken into pieces and sent across the network in packets. • This is an efficient way of data transfer. • When data is arrived at the destination, it's rebuild from chunks of data into a complete usable file.
12. Protocols define the application of Internet • Now that we know there are different protocols of internet, therefore we also can see that there are many uses and application of internet protocols. • VOIP for voice calls, FTP for file transfer and HTTP for Hyper Text Transfer. • HTTP is the one that defines protocol behind the world wide web. Yes “that” http://
13. Why so many Protocols? • For Optimization of data transfer. • Every protocol is maintained for optimization of data when sent and received across networks. • Just as every tool has a special purpose in a hardware box, every protocol has a special use on internet. Although pocket multi-tool is a thing but would you overhaul an airplane with a multi-tool?
14. The World Wide Web • Thus the World Wide Web or the HTTP is an application of internet to communicate and exchange documents on internet.
15. Browsers • Browsers are used to access the web documents. • Client computers when connected to the internet requests the document and the server which is also connected to the internet sends us the document. • The documents are linked up hyper text: meaning that documents may be linked to other documents on the internet. For example Wikipedia, an article is linked to several other articles that makes it easy to “browse” the pages. • That's it! It's the World Wide Web.
16. Browsers... • I need that document, can you send me that? That's what browsers do. • Request from browsers travels across the network and reaches server. • Server find and send back the document to the computer which made request. • Internet Explorer, Mozilla Firefox and Chrome are some of the example of notable browsers.
17. Conclusion • Internet is a vast growing network of connected computers. • World Wide Web is one of the applications of the Internet. • The World Wide Web or simply Web is not the Internet! And neither the Internet is Web. • No single entity owns the Internet nor the Web. It's an open source information space.