The World Wide Web
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Questions and Answers

Which of the following tags is used to create a forced line break?

  • <p>
  • <div>
  • <hr>
  • <br> (correct)

    • What is the purpose of CSS when used in web design?

  • To manage server-side scripts
  • To describe the presentation of HTML elements (correct)
  • To define the structure of the HTML document
  • To provide content for the web page

    • Which of the following correctly applies text alignment to an HTML element using a tag attribute?

  • <div text-align='center'>Text</div>
  • <h1 style='text-align:center;'>Text</h1> (correct)
  • <p align='center'>Text</p>
  • <span align='middle'>Text</span>

    • How can developers ensure their web pages are accessible to all users?

    <p>By including semantic HTML elements</p> Signup and view all the answers

    What is the function of the

      tag in HTML?

    <p>To create an unordered list</p> Signup and view all the answers

    Which attribute is used to specify the source URL of an image in HTML?

    <p>src</p> Signup and view all the answers

    What does 'responsive web design' primarily focus on?

    <p>Optimizing web pages for various devices and screen sizes</p> Signup and view all the answers

    Which of the following is NOT a description of a significant tag in HTML?

    <p>It can contain color and font size information.</p> Signup and view all the answers

    Which of the following correctly describes the function of HTML tags?

    <p>Tags are used to specify content characteristics and structure of a web page.</p> Signup and view all the answers

    What is a key feature of WYSIWYG software?

    <p>It provides an interface where the editing resembles how the final output will appear.</p> Signup and view all the answers

    Which of the following options is NOT a valid characteristic of search engines?

    <p>They only provide results containing exact matches to the search terms.</p> Signup and view all the answers

    Which statement accurately reflects the purpose of HTML attributes?

    <p>Attributes specify additional properties to an HTML tag, modifying its default behavior.</p> Signup and view all the answers

    What is a fundamental aspect of responsive web design?

    <p>Employing fluid grids, flexible images, and media queries to adapt layouts to different screen sizes.</p> Signup and view all the answers

    Which of the following best describes a characteristic of web accessibility standards?

    <p>They are designed to ensure all users can perceive, understand, navigate, and interact with web content.</p> Signup and view all the answers

    What is the correct file extension for an HTML document?

    <p>.html</p> Signup and view all the answers

    What distinguishes a closing tag in HTML?

    <p>It appears as an open tag with a forward slash at the beginning.</p> Signup and view all the answers

    Which method is primarily used to style a unique HTML element with inline CSS?

    <p>Using the style attribute within the HTML element</p> Signup and view all the answers

    What is the primary purpose of internal CSS?

    <p>To define a style for a single HTML page</p> Signup and view all the answers

    Which CSS implementation method is considered the most common?

    <p>External CSS files</p> Signup and view all the answers

    What role does the link element play in HTML?

    <p>It links external files, such as CSS stylesheets</p> Signup and view all the answers

    Which factor does NOT directly relate to responsive web design?

    <p>Color schemes for the website</p> Signup and view all the answers

    What is the primary benefit of using external CSS files?

    <p>It allows easier maintenance and consistent styling</p> Signup and view all the answers

    Which of the following indicates proper use of semantic HTML?

    <p>Employing tags with clear meanings, like <header> and <footer></p> Signup and view all the answers

    Why is web accessibility important?

    <p>To ensure that all users, including those with disabilities, can access information</p> Signup and view all the answers

    Study Notes

    The World Wide Web

    • Innovation is serendipity; inventors don't know what creations will result.
    • Tim Berners-Lee is credited with this.
    • http://www. is the World Wide Web's address.

    The Advent of WWW

    • The World Wide Web was invented at CERN (near Geneva, Switzerland) in 1989.
    • British computer scientist Tim Berners-Lee was the inventor.
    • Now, it revolutionizes worldwide communication.

    What is the World Wide Web (WWW)

    • A means to access information on the internet.
    • Information is presented in web pages, viewed using a web browser.
    • Web pages are interconnected using hypertext links.
    • Clicking a link takes you to the related web page or resource.
    • WWW isn't the entire internet; it's one internet service.

    Client-Server Model

    • Describes how networked computers interact.
    • Clients request info from servers.
    • Servers respond with the requested info (if available).
    • Web servers use HTTP.
    • File servers use FTP.

    HyperText Transfer Protocol (HTTP)

    • Method for requesting and transferring web pages.
    • Communication happens through HTTP requests and responses.
    • A user's click or URL input sends a request to a web server's HTTP port (80 or 8080).
    • The server responds with the requested resource if valid and available.
    • Otherwise, the server provides an error message.
    • This exchange happens for all resources needed to display the page (images, video, etc.).

    Ingredients for the Web

    • Clients (Web browsers) use HTTP (GET or POST) to interact with web servers.
    • HTML documents are requested and displayed.
    • CSS (Cascading Style Sheets) controls presentation.
    • JavaScript (JS) adds dynamic behavior.

    Web Browsers

    • Tim Berners-Lee created ENQUIRE (1980) and WorldWideWeb (1990).
    • Mosaic (1993) was the first graphical user interface (GUI) browser.
    • Netscape Navigator (1994) was the first commercial browser.
    • Internet Explorer (1995) was developed by Microsoft.
    • Firefox (2002) was developed by Mozilla.
    • Safari (2003) was developed by Apple.
    • Google Chrome (2008) surpassed other browsers.
    • Microsoft Edge (2016) was created by Microsoft.

    Search Engines

    • Systems that search and catalog (index) web page content.
    • Users input search criteria; the engine finds matching content.
    • Search criteria can be text and use Boolean operators for specificity.
    • Results can be filtered.

    Web Authoring

    • Building web pages.
    • HTML is the language to build web pages.

    HyperText Markup Language (HTML)

    • Defines web page content as a text file (.html).
    • Tags define content characteristics.
    • Text within tags is displayed as is.
    • < > tags are used for open, close tags.
    • Tags can specify additional attributes.
    • Web page text is in the HTML file; other content (images) is linked.
    • Pages link to each other, making a web of interconnected content.

    "What You See Is What You Get" Software

    • WYSIWYG (What You See Is What You Get) software shows the finished form in the editor.
    • Examples of WYSIWYG software include most text editors, Microsoft Word, Excel, PowerPoint, Gimp, Audacity.

    Example of a Simple Web Page

    • A basic example of an HTML file is presented.
    • URLs are used to show page locations.

    Basic Structure of a Web Page

    • : The outline for the HTML document.
    • : Holds information like author and keywords.
    • : Contains the page content.
    • Tags use spacing and indentation for human readability.

    Some HTML Tags

    • ...

      : Paragraph.

    • : Forced line break.
    • : Horizontal rule.
      • ...
      : Unordered list.
      • ...
      : Ordered list.
    • ...
      • : List item.

    • ...

      ,

      ...

      , etc.: Headings.
    • ...
      : Division or section, with special characteristics.
    • : Image display.
    • ...: Hypertext link.
    • : Comments for descriptions and notes.

    Tag Attributes

    • Provide additional characteristics to tags.
    • Tag attributes have the form: attrName="value".
    • Examples:
    • ...
      : center-aligned content.
    • : Image with dimensions.
    • York University : hyperlinked URL.

    Web Page

    • HTML (Content & Structure): e.g., headings, paragraphs, lists.
    • CSS (Presentation): e.g., font, color, background.
    • JavaScript (Behavior): e.g., dynamic displays, user interactions.

    Cascading Style Sheets (CSS)

    • CSS describes how HTML elements are displayed.
    • Defines styles for text, background, images, etc.
    • Controls the layout of multiple pages.
    • CSS can be added in three ways: inline, internal, and external.
    • Separate CSS files are a common way to manage styles.

    Inline CSS, Internal CSS and External CSS

    • Styles are used to define look and layout of HTML pages.

    Simple CSS Example

    • Shows a simple CSS example in an HTML file.

    Tim Berners-Lee

    • The web is for social connection, not just technical use and innovation.
    • Its goal is to support improvements in the world through connection and trust.
    • The Magna Carta for the web will protect people's rights online.

    Edward Snowden

    • Discusses the need for digital rights and the values we should protect online.

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    Related Documents

    The World Wide Web PDF

    Description

    Explore the origins and functionalities of the World Wide Web in this quiz. Learn about Tim Berners-Lee's invention, the client-server model, and how information is accessed through web pages. Test your knowledge on HTTP and the interconnected nature of the web.

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