Unit 1: The Internet Review

Unit 4: The Internet Review

by Marvin Tolbert

​The History of the Internet

Electronic computers were first developed in the 1950s. Networking, which is the connection of computers to one another in order to share and

transmit data, was just being explored in science labs in the U.S., U.K., and France.​

​World Wide Web

​The World Wide Web was the ability to link hypertext documents in

information systems and make them available from any node on the

network.

​

​​Commercial Internet service providers began appearing in the late 1980s,

and limited commercial entities had private connections to parts of the

Internet by 1990.

​How does it work

The Internet works by breaking the information you want to communicate,

for example, an email, down into very small parts. These parts are called

packets.

• ​A packet can contain between 1,000 and 1,500 bytes of

information.

• A byte is a group of binary digits or bits (usually eight) that is

handled as a unit.

• When we send information across the Internet, what we are sending and receiving is a series of packets.

• Networks that move data around in the form of packets are called packet switching networks.

​What is a Web Site?

​A website is one or more web pages written in code, usually HTML, that contains the layout, format, and content of each web page.

​

​Web pages are stored on web servers.

​

​What is a Domain Name?

• ​A website is identified by its domain name.

• A domain name is the address of the website, for example: www.whatisawebsite.com.

• Every website has a unique domain name. Ownership of a domain name is purchased for a year or more at a time, and periodically renews.

• Owning a domain name is like owning a piece of virtual real estate.

​What is a Web Browser?

• ​A web browser is a computer program used to access websites on the Internet. You use a web browser to request a particular website or a particular piece of information from a server.

• A server is a computer that stores (hosts) websites. Web sites are written in code, often HTML (HyperText Markup Language), and the server is actually only storing the code for your website.

Web browser & ​Websites

• ​Websites are accessed using a web browser, like Google Chrome or Safari.

• When you type a domain name into a web browser address bar,

• the browser requests the web page from the server where it is stored.

• The server sends the web page’s code to the browser.

• The browser then interprets the code, and shows you the web page the way that it is intended to look.

​

​When you type a web address (called a domain name) into a browser,

the browser looks up the IP address of the domain name, finds the server

where the web pages of that domain are hosted, asks that server for a

copy of the web page(s), receives the web page(s) from the server, and

then interprets the web page(s) code so that you can see the web page

on your screen.

Multiple Choice

What does the Internet prefix WWW stand for?

• Wisconsin Wind Weather

• Western Washington World

• Word Wide Web

• Wide Width Wickets

Multiple Choice

Chrome, Safari, Firefox and Internet Explorer are all examples of?

• Web Authoring Software

• Interpreters

• Browsers

• Compilers

Multiple Choice

An IP address is most similar to which of the following?

• A mail carrier

• A home address

• An electrical generator

• A television network

Multiple Choice

What does a network enable computers to do?

• Communicate with other computers

• Take commands from users

• Run games and word processing programs

• Solve complicated mathematical problems

Multiple Choice

It's a registered name of the website.

• HTML

• HTTP

• Domain

• Web

Multiple Choice

Is the "unit" of digital Information.

• DNS

• WiFi

• Byte

• URL

Multiple Choice

Internet

• Is completely open

• the connections are shared

• information is sent in plain text

• all the previous answers

Multiple Choice

A series of number used to identify a network device.

• IP Address
• IM Address
• MAC Address
• OP Address

Multiple Choice

A program that communicates with a Web server and displays Web pages.

• Web browser
• HTTP
• Network
• System software

Multiple Choice

Your ISP allows you to:

• Run your own website
• Access the Internet
• Route information to the right place
• Turn your computer on

Multiple Choice

www.google.com or www.yahoo.com are examples of a ______________. 

• website
• search engine
• webpage
• browser

Multiple Choice

Internet is a global network connecting millions of computers.

• True

• False

Multiple Choice

Intranet allows users to access information from other agencies and organisations.

• True

• False

Multiple Choice

A/An _______________ can either be a telecommunication company or any other organisation specialising in providing access to Internet services.

• Network Provider

• Internet Service Provider

• Service Provider

• Internet Connector

Multiple Choice

A web address consist of all below EXCEPT ______

• A protocol

• domain name

• link

• web page name / file name

Multiple Choice

A web address is a unique address for a web page. Identify B.

• A protocol

• Domain name

• Path

• Web page name/File name

Multiple Choice

A secure protocol that transfer Web pages on the Internet over SSL (Secure Socket Layer).

• http://

• https://

• www

• html

Multiple Choice

__________________ is a sequence of numbers that uniquely identifies the location of each computer or device connected to the Internet.

• web address

• computer address

• IP address

• network address

Multiple Choice

What is Domain Name?

• A text version of web page name.

• The text version of an IP address of a server.

• A search tools used to locate the information.

• A worldwide collection of network.