WEEK 2

• Is a network or system that connects millions of computers worldwide.

  INTERNET
• TCP/IP stands for?

  Transmission Control Protocol/ Internet Protocol
• is a suite of communication protocols used to connect devices on the internet and other networks.

  Transmission Control Protocol/ Internet Protocol
• it's an interconnected network of computer networks that is globally available

  Internet
• Is a private network that is contained within an organization or business.

  Extranet
• Is a semi private network that securely shares part of an organization’s information or operations with external partners such as suppliers, vendors, and customers.

  Extranet
• The creator of World Wide Web

  Tim Berners-Lee
• He wrote a program and named it ENQUIRE after a Victorianreference book that he remembered from his childhood forgiving easy access to a mass of useful Information.
• 1984, he returned to CERN as a fellow IT
• 1989 he saw an opportunity to join hypertext with the Internet.
• March 1989 wrote proposal about world wide web
• Together with Belgian System Engineer Robert Cailliau this formalized as a Management proposal in November 1990 by the end of 1990, Tim have the first Web Server and browser up Running on his NexT computer at CERN
• In 1991, the first Web Server outside Of Europe was at Stanford Linear Accelerator Center in California
• In 1990, CERN management decided that the web should act as an open Standard for all to use. NSF net removed the restriction in 1991 on commercial use of the Internet, setting the stage for future electronic commerce.
• In 1993, the first graphics-based Web browser, Mosaic, became available.
• In 1994 happen the first international world wide web conference hailed as the Woodstock of the Web was organized at CERN by Robert Cailliau
• The Web is the collection of digital resources, such as web pages and documents, that are accessible over the Internet.
• These resources are hosted on computers called servers.
• Each resource on the Web is identified by an address or a Uniform Resource Locator (URL).
• To access the resource, you enter its URL in a web browser.
• Hyperlinks or links connect websites and web pages. Once clicked or tapped, links load another page or resource.
• Web browser s a software application that allows you to access websites, web pages, and documents and display the information they contain using a network protocol called hypertext transfer protocol (HTTP).
• Dynamic websites can change based on the behaviors of the server application that generates the web pages.
• Links that load pages from the same website are called internal links.
• Those that load pages from another website are called external links.
• Domain names are responsible for directing traffic to web host servers.
• Servers are identified by their Internet protocol (IP) address, which is composed of numbers
• Web pages are identified by their specific URLs.
• A URL is composed ofthe following parts:

  •     https: // - The protocol (https is secure http)
  •      en. - The subdomain
  • wikipedia - The second-level domain
  •      .org - The top-level domain
  •      /wiki/Main_Page - Path
• Hypertext markup language (HTML) handles the content and structure.
• Cascading Style Sheets (CSS) is responsible for styling and aesthetics.
• JavaScript (JS) takes care of behavior and functionalities.

   
• HTML VERSIONS

   

       HTML4

       XHTML

       HTML5
• Internet Society http://www.isoc.org, is a professional

  organization that provides leadership in issues related to the future of the Internet.
• Internet Engineering Task Force (IETF) is an open international community of network designers, operators, vendors, and researchers concerned with the evolution of Internet architecture and the smooth operation of the Internet.
• (ICANN) Internet Corporation for Assigned Numbers and Names http://www.icann.org, was created in 1998 and is a nonprofit organization
• (W3C) World Wide Web Consortium , takes a proactive role in developing recommendations and prototype technologies related to the Web.
• WAI stand for?

  Web Accessibility Initiative
• W3C stand for?

  World Wide Web Consortium
• ICANN stands for?

  Internet Corporation for Assigned Names and Numbers