Weekly blog entries, Chapter 1: Introduction to the Internet and Web

Checkpoint 1.1

1. Describe the difference between the Internet and the Web.

The internet and the web are different.

The internet is the massive interconnection of computer networks that span the globe. While the Web is one set of software services running on the internet.

We can see the difference in terms of:

• Estimated year of origin: the internet has introduced since 1969 while web in 1993.

•  Name of the first version: ARPANET is the name of the first version of internet and NSFnet is for the web.

• Comprises: for internet: network of computers, copper wires, fibreoptic cables & wireless networks while web: files, folders & documents stored in various computer.

• Internet governed by Internet Protocol and Web governed by Hyper Text Transfer Protocol (HTTP).

• Internet is the base while the web it depends on Internet to work.

• Internet is a hardware unlike the web it is a software.

2. Explain three events that contributed to the commercialization and Exponential growth of the Internet.

Three evets that contributed to the commercialization of Exponential growth of the internet:

Going through chronology of events of internet,

In 1991, many important events took place such as first web page created, which brought some major innovations to the world of the internet.mp3 becomes standard and one of the more interesting developments of this era was the first webcam.

In 2008, the first ‘Internet Election’ took place with the U.S Presidential election.

In 2009, ICANN policy changes brought about one of the biggest changes to come to the internet.

3. Is the concept of Universal design important to web developers? Explain your answer.

Yes, it is important as it is convenience for all users.

Checkpoint 1.2

4. Describe the components of the client/ server model as applied to the Internet.

When needed, the web client is connected to the internet, usually it runs web browser (client) software such as Internet Explorer or Firefox or Google Chrome or Safari, by using HTTP, requests web pages from a server and receives web pages and files from a server

The web server is connected to the internet continually and runs web server software such as Apache and Internet Information Server, by using HTTP, receives a request for the web page and responds to the request and transmits the status code, web page, and associated files.

5. Identify two protocols used on the Internet to convey information that use the Internet, but do not use the web.

The two protocols used on the internet to convey information that use the internet, but do not use the web are File Transfer Protocol (FTP) and Transmission Control Protocol (TCP).

6. Explain the similarities and differences between a URL and a domain name.

e.g. https://www.edmodo.com/

 

A Uniform Resource Locator (URL) is a type of URI which represents the network location of a resource such as a web page and so on. The URL consists of the protocol, the domain name and the hierarchical location of the file on the web server.

URL is the full address to a web page, e.g. https://www.edmodo.com/

There are different kinds of domain names. E.g. top-level domain, second-level domain and third-level domain.

A domain name is part of the URL. It locates an organization or other entity on the internet. The purpose of the Domain Name System (DNS) is to divide the Internet into logical groups and understandable names by identifying the exact address and type of the organization.

Domain name, e.g. Edmodo.com