Sunday, 13 April 2014

Introduction to XML

Hola...!
After long time, and now we meet again.
Today, we're gonna tell you a little bit about XML.

Before we start our leisure discussion, we wanna ask you a few simple and basic questions about XML. Don't worry if you get wrong. It is common thing for those who don't really familiar with XML.



1) Do you know what does XML stands for?
2) Do you know what does XML used for?
3) Is there any difference between XML and HTML?

Are you ready for the answers? Let us begin ;-)

1) What is XML?

Actually, XML stands for Extensible Markup Language (XML).
Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. The goal was to make it easy to transfer information across the internet in a simple manner.

2) What does XML is used for?

XML is used in many aspects of web development, often to simplify data storage and sharing.

  • Separates data from HTML
  • Simplifies data sharing
  • Simplifies data transport
  • Simplifies platform changes
  • Makes your data more available
  • Used to create new internet languages
3) What are the differences between XML and HTML?

XML HTML
XML was designed to be a software and hardware independent tool used to transport and store data, with focus on what data is HTML is used for designing a web-page to be rendered on the client side
XML is case sensitive HTML is case insensitive
XML provides a framework for defining markup languages HTML is a markup language itself
XML is neither a programming language nor a presentation language. HTML is a presentation language
XML is flexible because the custom tags can be defined and the tags are invented by the author of the XML document HTML has it own predefined tags
XML makes it mandatory for the user the close each tag that has been used HTML is not strict if the user does not use the closing tags
XML is about carrying information,hence dynamic. HTML is about displaying data,hence static

That's all for today, guys.
Hope that this information may help you :-)

If you wanna get any further information about XML, you may refer to this link: http://www.w3schools.com/xml/default.asp

History of Internet :D

Hey guys!
Today we would like to share abaout the 'History of internet'.
We hope that you guys will gain some knowledges and benefits from this entry :)





The Internet started in the 1960s as a way for government researchers to share information. Computers in the '60s were large and immobile and in order to make use of information stored in any one computer, one had to either travel to the site of the computer or have magnetic computer tapes sent through the conventional postal system. 


Another catalyst in the formation of the Internet was the heating up of the Cold War. The Soviet Union's launch of the Sputnik satellite spurred the U.S. Defense department to consider ways information could still be disseminated even after a nuclear attack. This eventually led to the formation of the ARPANET (Advanced Research Projects Agency Network), the network that ultimately evolved into what we now know as the Internet. ARPANET was a great success but membership was limited to certain academic and research organizations who had contracts with the Defense Department. In response to this, other networks were created to provide information sharing.


January 1, 1983 is considered the official birthday of the Internet. Prior to this, the various computer sharing did not have a standard way to communicate with each other. A new communications protocol was established called Transfer Control Protocol/Internetwork Protocol (TCP/IP). This allowed different kinds of computers on different networks to "talk" to each other. ARPANET and the Defense Data Network officially changed to the TCP/IP standard on January 1, 1983. All networks could now be connected by a universal language.

Year Description
1945-1969 (From simple, But significant Ideas Bigger Ones Grow)
- We can access information using electronic computers
- We do it reliably with 'bits' sending and receiving data
- We can do it cheaply by using Digital circuits etched in silicon
- We can accomplish a lot by having a vast network of computers to use for accessing information and exchanging ideas
- Packet switching can be used to send digitized data through computer networks
- Hypertext can be used to allow rapid access to text data
- We will prove that packet switching works over WAN

1970s-1995
- We need a protocol for Efficient and Reliable transmission of Packets over a WAN: TCP/IP
 - The ARPANET needs to convert to a standard protocol and be renamed to The Internet
 - Computers connected via the internet can be used more easily if hypertext links are enabled using HTML and URL's its called World Wide Web (WWW)
- The World Wide Web is easier to use if we have a browser to browse a web pages, running in a graphical user interface context.
 - Great efficiencies can be accomplised if we used The Internet and World Wide Web to conduct business

For more info regarding the history of internet, u can visit these websites:

www.internetsociety.org
education.illinois.edu
www.computerhistory.org