Classwork 17 Nov.

According to the article you read answer the following questions:


1.What is NIC, ISP and LAN ? Organize this components in a graphic representing how do you connect internet from your computer at home?

1.1. Explain the computer internet animation

2.Create a graphic representing the client - server interaction? (web browser -Web server )

3.Whats an ip address?

4.A Web page's PageRank depends on what factors?

5.List 5 examples of search engines.

Test Tuesday

November 17, C&T test.

Required Lectures:

1. Internet introduction

1.1 Internet Animation

2.Servers/clients

4.IP address

5. Search engines

6.How google works

Internet Technologies Review

The WWW
Source: CSTA model Curriculum 2009

The web was invented by Tim Berners-Lee in 1990 and 1991. The World Wide Web has three major components. The user runs a web browser, which formats and displays web pages. Web servers store collections of web pages (called web sites) and data. Users and web servers are connected by the Internet, which passes data between them.

A user’s browser connects to a web server and requests a web page, which is transmitted back to the user’s computer over the Internet.

Web pages have links to other web pages; following these links is the primary technique for traversing the web. Web pages are identified with URLs (Uniform Resource Locaters). A URL consists of a scheme (e.g. http://), a host (e.g. www.google.com), a port (e.g. 80) which is usually omitted, and a path or other page identifying information (e.g. /newuser/login.html).

Search engines are a central part of the web. They consist of “inverted lists,” or indices, which associate words with the URLs of web pages on which those words appear. These lists are created and updated by computer programs called “spiders” which read web pages and update the lists.

The World Wide Web gives every person with a computer connected to the Internet easy access to a vast amount of information and resources. However we should know how to of use the web in a safe manner:

1. Whenever a file is downloaded from a web site to your own computer, there is a possibility that that file contains a virus. Files from well-known companies are generally (but not always) safe, and files from file sharing sites are often infected.

2. We should be careful with giving personal information (such as name, age, address, parent’s credit card number) on a web page

A popular use of the Internet is to send email (electronic mail). An email address consists of a user name (1 to 64 characters long), the @ symbol, and a domain name, such as example.com.

Three guidelines for responsible use of email:

1.Do not forward email if you dont know the its real content.

2. Do not respond to email from anyone you don’t know;

3.Never write anything in an email that you would not want your parents and teachers to read.

Google Tricks

Read the following article and prepare a short oral presentation about two search tricks on this list:

Google Search Tricks

Search Engines: the Google Mania

1.What is a search Engine?

2. Why search engines are necessary?

3.Why Google is the most popular search engine?

4. When and who created Google? why?

5.How would be the internet without search engines?

6. How Google Determine the Search Results positions?

Wequest Internet

Wequest Internet

Check this interactive content ( Only Red, Blue and yellow segments) and answer the following questions:

TuDiscovery. Internet Interactivo


1. Who created the first Computer?

2. What is the name of the internet grandfather ?

3. THe first message ever sent over the ARPANET was:

4. Who invented the word Internet? What stands for internet?