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Questions and Answers
Describe the difference between the internet and the Web.
Describe the difference between the internet and the Web.
The internet is a public, globally connected network of computer networks. The web is a graphical user interface to information stored on computers running web servers connected to the internet.
Explain three events that contributed to the commercialization and the exponential growth of the internet.
Explain three events that contributed to the commercialization and the exponential growth of the internet.
Development of personal computers with graphical operating systems, widespread availability of internet connection services, removal of the restriction of commercial use on NSFnet.
Is the concept of universal design important to web developers? Explain your answer.
Is the concept of universal design important to web developers? Explain your answer.
Yes, because websites should be usable by all people, and access to technology is mandated by law for government and educational websites.
Describe the components of the client/server model as applied to the internet.
Describe the components of the client/server model as applied to the internet.
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Identify two protocols used on the internet to convey information that use the internet, but do not use the web.
Identify two protocols used on the internet to convey information that use the internet, but do not use the web.
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Explain the similarities and differences between a URL and a domain name.
Explain the similarities and differences between a URL and a domain name.
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What is a unique text-based internet address corresponding to a computer's unique numeric IP address called?
What is a unique text-based internet address corresponding to a computer's unique numeric IP address called?
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Select the item that indicates the top-level domain name for the URL http://www.mozilla.com.
Select the item that indicates the top-level domain name for the URL http://www.mozilla.com.
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Of the following organizations, which one coordinates applications for new TLDs?
Of the following organizations, which one coordinates applications for new TLDs?
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Which of the following is a network that covers a small area, such as a group of buildings or campus?
Which of the following is a network that covers a small area, such as a group of buildings or campus?
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Which organization takes a proactive role in developing recommendations and prototype technologies related to the Web?
Which organization takes a proactive role in developing recommendations and prototype technologies related to the Web?
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A URL is one type of URI.
A URL is one type of URI.
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Markup languages contain sets of directions that tell the browser software how to display and manage a web document.
Markup languages contain sets of directions that tell the browser software how to display and manage a web document.
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The World Wide Web was developed to allow companies to conduct e-commerce over the internet.
The World Wide Web was developed to allow companies to conduct e-commerce over the internet.
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Study Notes
Internet vs. World Wide Web
- The internet is a globally connected network of computer networks available to the public.
- The World Wide Web is a graphical interface for accessing information stored on computers connected to the internet, and is a subset of the internet.
Commercialization of the Internet
- Key events in the 1990s that spurred internet growth include:
- Development of personal computers with graphical operating systems.
- Widespread availability of internet connection services.
- Removal of restrictions on commercial use on NSFnet.
- Creation of the World Wide Web by Tim Berners-Lee.
- Development of the graphical browser Mosaic by NCSA.
- These developments provided commercial incentives and revolutionized information sharing.
Importance of Universal Design
- Universal design is crucial for web developers as websites must be usable by everyone.
- Legal mandates exist for government and educational institution websites to ensure technology access.
Client/Server Model
- A web client is typically a computer running a browser, like Internet Explorer, that connects to the internet as needed.
- Web browsers use HTTP to request web pages from web servers.
- Web servers are continuously connected and respond to HTTP requests by sending requested resources.
Internet Protocols Not Related to the Web
- Several protocols utilize the internet without using web applications:
- SMTP (Simple Mail Transfer Protocol) for sending emails.
- POP (Post Office Protocol) and IMAP (Internet Message Access Protocol) for receiving emails.
- FTP (File Transfer Protocol) for exchanging files over the internet.
URLs and Domain Names
- A URL (Uniform Resource Locator) indicates the address of an online resource and consists of a protocol, domain name, and resource location.
- A domain name identifies an organization on the internet and is linked to a numeric IP address, forming part of the URL.
Domain Name
- A unique text-based address that corresponds to a computer's IP address is called a domain name.
Top-Level Domain
- In the URL http://www.mozilla.com, the top-level domain is “.com”.
TLD Coordination
- The Internet Corporation for Assigned Numbers and Names (ICANN) coordinates applications for new top-level domains (TLDs).
LAN Definition
- A Local Area Network (LAN) covers a small geographical area, such as a campus or a group of buildings.
Web Development Organization
- The World Wide Web Consortium (W3C) actively develops recommendations and prototype technologies related to the Web.
URI and URL Classification
- A Uniform Resource Identifier (URI) can be classified as a locator, a name, or both. A URL is a specific type of URI that helps locate resources.
Markup Languages
- Markup languages consist of instructions that tell browsers how to display and manage web documents.
Origin of the World Wide Web
- The World Wide Web was not developed solely for e-commerce; it expanded access from simple text screens.
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Description
Explore the key differences between the internet and the World Wide Web, including their definitions and functionalities. Learn about the commercialization of the internet in the 1990s and the significance of universal design for web accessibility.
