Archive for the ‘NED11’ Category

NED11 1.1.3

March 5, 2007

1970 – First cross-country link installed by AT&T between UCLA and BBN at 56kbps. This line is later replaced by another between BBN and RAND. A second line is added between MIT and Utah

 

1984- Domain Name System (DNS) introduced

 

1991 – World-Wide Web (WWW) released by CERN; Tim Berners-Lee developer (:pb1:). First Web server is nxoc01.cern.ch, launched in Nov 1990 and later renamed info.cern.ch.

 

1995 – Sun launches JAVA on May 23, Real Audio streaming technology, lets the Net hear in near real-time.

 

1998  Open source software comes of age

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NED 1.1.12 Answers

March 4, 2007

1. What role did Tim Berners-Lee play in the development of the Internet?

Although he didn’t invent the internet, Tim Berners-Lee did play a major part in what we call the internet today. He in fact invented the ‘web’, which is a global hypertext system that we know as the World Wide Web. The internet doesn’t hold information; it takes you to the computers that hold the information, which is when the web comes in. The web finds the documents, the sounds and the sights that we know as the internet.

2. In this unit, you will be working with the XHTML scripting language. What scripting languages did Tim Berners-Lee discuss (back in 2000)? Do you feel his comments are still relevant today? What evidence can you find to support your view?

Back in 2000 Tim Burners-Lee was talking about the next big step in the internet, Resource Description Framework. Resource Description Framework or RDF was seen as the next level to XML.

His comments seem to be slightly outdated, although RDF is still used, HTML and XHTML are the more popular, commonly used languages.

RSS feeds are based on XML and XHTML is the ‘new’ language of the web.

 

3. Tim Berners-Lee discusses the world’s very first Web page. Visit the site and write your observations on the following: In what ways do you feel Web design has changed over the years, not just in the visual design, but in the hyperlinks? Why do you think his page is so simple? What scripting language did it use? View the source of this page and tell us how many different tags you can find in the code. (see http://www.w3.org/History/19921103-hypertext/hypertext/WWW/TheProject.html)

The first web page is simple, not just in what it does, but what it looks like. There are no colours, no background, no real formatting to speak of. As they say in the movies it’s ‘Just the facts’, these day the web is a mired of colours and sounds, inviting the user to read more, see more, experience more at every click of the mouse. Although back when the internet was ‘born’ it would have taken a week to download a standard webpage of today. Then it was functional and only held the information that was needed.

XML was used and 10 different tags were used, HEADER, TITLE, NEXTID, BODY, H1, A, DL, DT, DD, and BODY.

4. What is the W3C? Why do they care about “standards?”

W3C is a consortium (an association of two or more members, companies, organizations, or governments participating in a common activity or working for a common goal) working to develop web standards. Web standards are decided upon so that web developers know the common specifications of the way to go in developing the web.

5. If Tim Berners-Lee could roll the clock back and re-design URLs, how would we type in the address for Curtin University ‘s Admissions Office (now at http://students.curtin.edu.au/administration/admissions/ )? Why would he do this?

http:edu/au/students/curtin/administration/admissions, apparently to make it easier to read and use.

6. According to Tim Berners-Lee, who invented the first GUI (Graphical User Interface) browser? Name 5 different Web browsers. Which do you think are the most popular ones today?

Internet Explorer, Firefox, Moasic, Opera and Netscape.

 

Internet Explorer or IE is clearly the most popular, although this may be mainly because it is the standard browser installed on almost every PC purchased today. Firefox is becoming more and more popular however, expecially since the wonderful world of add-ons have allowed it to be personalized right down to the sound you make when you click a link.

7. Name the three first World Wide Web link colours, in order of appearance.

Black, blue and green.