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The Internet, the Web, and Electronic Commerce

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Learning Objectives

Explain the origins of the Internet and the web.

Explain how to access the web using providers and browsers

Compare different web utilities including filters, file transfer utilities, and Internet security suites

Compare different Internet communications, including social networking blogs, microblogs, webcasts, podcasts, wikis, e-mail, text messaging, and instant messaging

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Learning Objectives continued

Describe search tools, including search engines and specialized search engines

Evaluate the accuracy of information presented on the web

Identify electronic commerce, including B2C, C2C, B2B, and security issues

Describe cloud computing, including the three-way interaction of clients, Internet, and service providers

Discuss the Internet of Things (IoT) and the continuing development of the Internet to allow everyday objects to send and receive data

Introduction

The Internet

Interconnected mesh of computers and data lines

Connecting millions of people and organizations

Foundation of the digital revolution

The web

Provides an easy-to-use interface to Internet resources

To be effective and efficient

End user awareness of the resources available on the Internet and the web

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The Internet and the Web

The Internet

Large global network connecting smaller networks all over the globe

The Internet launched in 1969

The United States funded a project to develop a national computer network

ARPANET (Advanced Research Project Agency Network)

World Wide Web or WWW was introduced in 1991

The Internet and the web are NOT the same

The Internet is the physical network

The web is a multimedia interface to the resources available on the Internet

The Internet (key term) is the most developed network system currently in use; connects people all over the world

The Internet originally started in 1969 when US funded a research project (ARPANET—Advanced Research Project Agency Network) (key term)

World Wide Web (Web) is a part of the Internet – not the Internet; introduced in 1991 by consortium in Switzerland

Originally started as research and text-based network to exchange research ideas from university to university

Internet is the actual physical network comprised of wires, cables, satellites, and rules

Being connected to the network is often referred to as being online (Key Term)

The Web is a multimedia interface to resources available on the internet

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Web

Web 1.0

1st generation

Linking existing information focus

Search programs were created

Provide links to websites with specific words or phrases

Web 2.0

Dynamic content creation

Facebook is most common in Web 2.0

Web 3.0

Identifies relationships between data

Personalized content creation for users

Web 1.0 (key term) – linking existing information

Web 2.0 (key term) – more dynamic content creation and social interaction (Facebook)

Identifies relationships between data

Siri and Google Assistant

Web 3.0 (key term) – computer-generated information requiring less human interaction

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Common Internet Uses

Communicating

E-mail, photos, videos

Discussions

Shopping

Searching

Virtual libraries

Education or e-learning

Online Entertainment

Most common Internet uses are:

Communicating – most popular Internet activity. Exchange e-mail, photos, videos

Shopping – fastest-growing applications

Searching - using virtual libraries.

Education or e-learning (Key Term) – take classes remotely from almost any location and any subject

Entertainment – music, movies, magazines, computer games

See the Making IT work for you for Online Entertainment (Page 30 – 31)

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Making IT Work for You Online Entertainment

Online options for TV, movies, music, books, social media, news feeds

Hulu, Amazon Prime, Netflix, Amazon Kindle, CNN, Facebook, Twitter

Many users are no longer subscribing to cable or satellite services. Instead they are using pay-as-you-go services such as Hulu, Netflix and Amazon Prime to watch movies and their favorite TV episodes.

Pandora and Spotify for online music

Digital books allow you to read several books at a time on different devices.

News feeds such as Feedly.com allow you to search for news sources by publisher or topic.

And there is also Pay-as-you-go programs available

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Internet Access Providers

Internet Service Provider (ISP)

Common way to access the Internet

Provide a path to access the Internet

Use telephone lines, cable, and/or wireless connections

Most common providers

Verizon, Comcast, Sprint, T-Mobile, AT&T

The common way to access the Internet is through a provider

Internet Service Providers (ISPs) (key term) - already connected to the Internet -- furnish a pathway for other users

Most commonly used ISPs use telephone lines, cable (key term) and / or wireless connections

Typical providers include:

Verizon, Comcast, Sprint, T-Mobile and AT&T

Discussed in Chapter 8 - ISPS connect using connection technologies

DSL, Cable, Wireless

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Browsers

Provide access to web resources

Allow you to explore the web

Connect to remote computers

Uncomplicated interface to the Internet

File transfer

Display many varieties of multimedia

Popular Web browsers include:

Mozilla Firefox

Apple Safari

Microsoft Edge

Google Chrome

Browsers (key term) programs that allow you to explore the web

Navigate, search for information and communicate using the web

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URLs

Uniform Resource Locator

Location or address of resource

https is the most common for web traffic

Two parts

Protocol

Rules for exchanging data

Domain name

Where resource is located

Use URL (uniform resource locator) (Key Term) to connect to other resources. URL is the address (key term) and contains two parts.

Two parts to URL:

protocol (Key Term), rules for exchanging data between computers (usually http://);

domain name (Key Term) – specific address where the resource is located

Many URLs have additional parts specifying directory paths and file names.

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Top-Level Doman (TLD)

Top-level domain (TLD) or Web Suffix

Identifies the type of organization

.com Commercial

.edu Educational

.gov Government

.mil U.S. military

.net Network

.org Organization

TLD or Top-level domain (key term), also known as the web suffix (key term) identifies the type of organization

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HTML and Hyperlinks

Hypertext Markup Language

Markup language for displaying web pages

Browsers interpret HTML commands

Display document as a web page

Hyperlinks or links

Connect to other web pages

Text files

Graphic images

Audio and Video Clips

Browsers Interpret the HTML (key term) codes and formatting instructions and displays the document as a web page (term term)

May contain

Hyperlinks (Key Term) or links (key term) -- allow users to quickly connect to other pages or web sites

Graphics

Text

Multimedia elements

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Interactive Web Sites

Technologies used to provide highly interactive and animated websites

Cascading Style Sheets (CSS)

JavaScript

PHP

Mobile Browsers

Designed to run on portable devices

Cascading Style Sheets (key term) – files referenced that control the appearance of a web page giving them consistent look for presentation.

JavaScript (key term) – language used with HTML documents to trigger interactive features such as opening a new browser

PHP (key term) – language also used the HTML documents to improve website’s interactivity. However, PHP executives on the website’s computer, JavaScript executes on the user’s computer.

Mobile Browsers (key term) – designed to run on portable devices. Contain special navigational tools for convenience to pinch and stretch

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Web Utilities

Specialized utility programs that make using the Internet and web safer and easier

Filters

File Transfer Utilities

Internet Security Suites

Web utilities (key term) are specialized utility programs that make using the Internet and web easier and safer

The utilities we will discuss are:

Filters

File Transfer Utilities

Internet Security Suites

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Filters

Block access to selected sites

Set time limits

Monitor total time spent on the Internet and at individual web sites

Net Nanny

Qustodio Parental Control

Circle with Disney

Norton Online Family

McAfee Family Protection

Filters (key term) – block access to selected sites.

Filters can also monitor use and generate reports detailing the total time spent on the Internet and specific sites.

Best know filters

Net Nanny – www.netnanny.com

Qustodio Parental Control – www.qustodio.com

Circle with Disney – meetcircle.com

Norton Online Family – onlinefamily.Norton.com

McAfee Family Protection – www.mcafeefamilyprotection.com

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File Transfer Utilities

Upload and download files to and from the Internet

Downloading

Uploading

Three popular types of programs

Web-based file transfer services

Bit-Torrent

File transfer protocol (FTP) / Secure file transfer protocol (SFTP)

Also referred to as downloading (key term) – receiving a file from the Internet and uploading (key term) copying a file to the Internet

Web-based file transfer services (key term)

uses web browser to upload and download files

Dropbox.com is a widely used service

BitTorrent (key term)

distributes file transfers across many computers for more efficient downloads

File Transfer Protocol (key term) and Secure File Transfer Protocol (key term) (FTP & SFTP)

copy files to and from your computer to the Internet

used for uploading changes to a website

good for transferring large files

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Internet Security Suites

Designed to maintain your security and privacy while on the web

Two best known suites

McAfee Internet Security

Symantec Norton Internet Security

Internet Security Suites (Key Term) – collection of utility programs designed to maintain your security and privacy while you are on the Web

Control spam

Protect against computer viruses

Provide filters

Suites are the most cost efficient way to go instead of buying each component separately.

McAfee Internet Security

Symantec Norton Internet Security

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Communication

Communication is the most popular Internet activity

Social Networking

Blogs and Microblogs

Webcasts, Podcasts, and Wikis

E-mail and Messaging

Communication – most popular Internet activity:

Social Networking

Blogs

Microblogs

Webcasts

Podcasts

Wikis

E-mail

Messaging

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Social Networking

Connecting people and organizations that share a common interest or activity

Common features

Profiles

Pages

Groups

Friends

News feed

Share settings

Social Networking (Key Term)

One of the fastest growing uses of the Internet

Connecting individuals to one another

Common features in most all social networking sites:

Profiles (key term) – created by individuals to share personal information

Pages (key term) – created by companies to promote their business

Groups (key term) – communities of individuals who share a common interest

Friends (key term) – list of those you want to communicate with

News feed (key term) – first page you see after logging into the site

Share settings (key term) – settings you set determining who can see your posts

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Blogs, Microblogs

Blogs

Personal websites

Date/time-stamped

Arranged with the most recent items shown first

Microblogs

Short status updates

Most common is Twitter

Tweets are Twitter messages

Blogs (key term) personal websites to keep in touch with family and friends

Online diaries

Blogger and WordPress

Microblog (key term) publish only short sentences

Twitter (key term) is the most popular

Tweet is a Twitter message

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Webcasts, Podcasts, Wikis

Webcast

Streaming technology for live broadcast of audio and video

No files after streaming ends

Podcast

Must download files to use

Can transfer to media player

Wiki

Specially designed Web site

Allows visitors to edit the contents

Supports collaborative writing

Webcasts (key term) streaming technology (key term) using audio and video continuously downloaded to your computer

YouTube is a popular example

After webcast is complete, no files remain on your computer

Podcasts (key term) available on iTunes and do not use streaming technology

Wiki (key term) – website which is editable by users. Built on a community of interested people that build knowledge over time.

Wikipedia (key term) is an example of using a wiki as an online encyclopedia

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E-Mail

E-mail

Transmission of electronic messages over the Internet

Three elements

Header

Address

Subject

Attachments

Message

Signature

E-mail or electronic mail (Key Term)

Transmission of electronic messages over the Internet

Has three basic elements: header (key term), message (key term) and signature (key term)

Header contains:

Address (key term) – who the e-mail is going to.

Address (Key Term) has two parts

User name - identifies unique user or computer in the domain

Domain name (Key Term) - references a specific organization

Subject (key term) – topic of the message

Attachments: (key term) – documents and / or images you attach to the message

Message: (key term) – letter

Signature: (key term) – information about the sender

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E-mail Systems

Client-based

E-mail client

Must be installed on computer

Apple Mail

Microsoft Outlook

Web-based

Webmail client

No installation necessary -- free

Google’s Gmail

Microsoft’s Hotmail

Yahoo!’s Yahoo!mail

Client-based e-mail system (key term) – requires installation of an e-mail client (key term) on your computer. Examples are Microsoft Outlook and Apple Mail.

Web-based e-mail system (key term) – no email program on your computer, access from any computer through a Browser. Examples are Google Gmail, Microsoft Hotmail, Yahoo!Mail

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E-mail

SPAM

Unwelcome-mail

Computer viruses

Destructive programs

Attached to unsolicited email

CAN-SPAM Act

Created antispam laws for control

Every marketing related e-mail must provide an opt-out option

Spam blockers / spam filters

Identify and control spam

Spam (Key Term) – unsolicited / unwelcome e-mail

Distraction, Nuisance

Computer viruses (Key Term) can also be attached to spam

Spam blockers (Key Term)/ Spam filters (key term) use a variety of different approaches to identify and eliminate spam

CAN-SPAM Act requires that every marketing related email provide an opt-out option

Tips to blocking spam:

Keep a low profile

Don’t ever respond to spam and be cautious when giving out your address

Use e-mail filter options

Use antispam and filter options

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Messaging

Text messaging / texting

SMS (short message service)

Short electronic message

Multimedia Messaging Service (MMS)

Send

Images

Videos

Sounds

Text Messaging (key term) – also know as texting (key term) is sending short electronic messages between mobile devices.

SMS (short Message Service) (key term)

Has become one of the most widely used ways to send short messages

Many states have passed laws prohibiting texting while driving due to the negative impact on driver safety according to a study conducted by Car and Driver

Multimedia Messaging Service (MMS) (key term)

Enables users to not only send text but also images, videos, and sounds

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Instant Messaging

Instant messaging (IM)

Extension of email that provides direct, live communication between two or more people

Most programs include video conferencing features, file sharing and remote assistance

Facebook Messenger

Google Hangouts

Instant Messaging (Key Term)

Extension of email that allows two or more people to contact each other via direct, live communication

To use instant message, specify list of friends (Key Term) and register with an instant messaging server

Some services include video and file-sharing

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Search Tools

Search Services

Operate websites

Spiders

Look for new information and update websites

Search Engines

Assist in locating specific information

Specialized Search Engines

Focus on subject specific websites

Specialized programs that assist you in locating information on the Web and the Internet

Search services (Key Term) operate web sites that help you locate information; they maintain the database that helps you get where you want

Special programs called spiders (Key Term) continually look for information and updated services

Search engines (Key Term) – assist you to locate specific information

Use keyword or phrase search; know “rules” i.e. use + or quotes to look for phrases rather than individual words

Specialized search engines (Key Term) - Programs that focus on subject specific Web sites

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Content Evaluation

Content Evaluation

Not everything on the Internet is accurate

Authority

Accuracy

Objectivity

Currency

Content Evaluation – be sure to check the authority, accuracy, objectivity and currency

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Electronic Commerce

E-commerce

Buying and selling of goods over the Internet

Three basic types

Business-to-consumer (B2C)

Consumer-to consumer (C2C)

Business-to-business (B2B)

Electronic commerce (key term) or E-Commerce (key term) is buying and selling over the Internet

Three basic types of electronic commerce: business to consumer; consumer to consumer; and business to business

B2C

C2C

B2B

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Business to Consumer (B2C)

Sale of product or service to general public

Fastest growing type of e-commerce

Three most widely used B2C applications:

Online banking

Financial trading

Shopping

Amazon.com is one of the most widely use B2C sites

B2C (key term) is fastest growing type of e-commerce. Involves the sale of a product or service to the general public or end user.

Three types

Online banking

Financial trading

Shopping

Amazon.com is one of the most widely used B2C sites.

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Consumer to Consumer C2C

Consumer-to-consumer e-commerce (C2C)

Individual to individual

Web auctions

Buyers and sellers seldom meet

Bids are submitted electronically

Person-to-person auction sites

Recent trend in C2C e-commerce (key term) involves individuals selling to individuals and is Web auctions (Key Term); similar to traditional auctions – no one sees each other

Buyers and sellers seldom meet face-to-face

Ask the students if they have ever used E-bay

Example auction sites include eBay, QuiBids, eBay, eBid.

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Business to Business B2B

Sale of a product or service from one business to another

Primarily a manufacturer supplier relationship

Business to Business (B2B) (key term) involves the sale of a product or service from one business to another.

Example: A furniture manufacturer requires raw materials such as wood, paint, and varnish.

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Security

Payment methods must be fast, reliable, and secure

Provide a convenient way to submit buyers information

Two options

Credit card

Fast and convenient

Digital cash

Internet’s equivalent to traditional cash

Converts digital cash to currency through 3rd party

A challenge is the payment for goods

Should be reliable, secure, and fast

Convenience

Electronic payment -- easy, secure payment method

Credit cards -- easier to work with, somewhat vulnerable to theft

Digital cash (Key Term)

Purchased from third party (usually a special bank); more secure than credit cards

Providers include Amazon, Google, Venmo, and PayPal

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Cloud Computing

Shifts computing activities from users’ computers to computers on the Internet

Frees end-users from owning, maintaining, and storing software programs and data

Three basic components:

Clients (end-users)

The Internet

Service providers

Cloud computing (key term) Basic components include:

Clients: corporations and end-users who want access to data, programs, and storage anywhere and anytime a connection to the Internet is available

Internet – to provide the connection between the client and the provider

Service providers: organizations that are willing to provide (sometimes for a fee) access to software and storage

Two critical factors that determine the efficiency of cloud computing

The speed and reliability of the user’s access to the Internet

Internet’s capability to provide safe and reliable transmission of data and programs

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Internet of Things (IoT)

Continuing development of the Internet

Allows objects embedded with electronic devices to send and receive data

Smartphones

Wearable devices

Uses Web 3.0 Applications

Internet of Things (IoT) (key terms) - continuing development of the Internet which allows objects embedded with electronic devices to send and receive data

Includes

Smartphones

Wearables

Uses web 3.0 applications to sync devices with web applications

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Careers In IT - Webmasters

Develop and maintain websites and resources

Backup of company website

Design and development of websites

Work with the marketing

Increase site traffic

Development of web promotions

Webmasters

Employers look for:

Bachelor’s or associate’s degree in computer science or information systems

Knowledge of common programming languages and web development software

HTML and CSS are essential

Web Authoring knowledge

Good communication and organizational skills are essential

Salary in the range of $61,000 to $83,000

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A Look to the Future

Car’s Dashboard as a power, Internet-connected computing device

Safety and diagnostic features are already there

Self-driving cars

Your car today is already governed by computer technology located within your vehicle.

Benefits involve quick access to vital information such as traffic, weather, directions in real time.

Potential distractions could also come into play. Technology would need to be cautious and prevent the driver from ever having to touch the dashboard by using voice recognition.

Self driving cars

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Open-Ended Questions (Page 1 of 3)

Discuss the Internet and web, including their origins, the three generations of the web, and the most common uses.

Describe how to access the Internet. What are providers? Define browsers, and discuss URLs, HTML, CSS, JavaScript, AJAX, PHP, and mobile browsers.

What are Web utilities? Discuss filters, file transfer utilities, and Internet security suites.

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Have students turn to the end of Chapter 2 in their textbooks to view the same “Open-Ended” questions/statements

Open-Ended Questions (Page 2 of 3)

Discuss Internet communications, including social networking, blogs, microblogs, webcasts, podcasts, wikis, client-based and web-based e-mail, and messaging.

Define search tools including search services. Discuss search engines and specialized search engines. Describe how to evaluate the content of a web site.

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Have students turn to the end of Chapter 2 in their textbooks to view the same “Open-Ended” questions/statements

Open-Ended Questions (Page 3 of 3)

Describe electronic commerce, including business-to-consumer, consumer-to-consumer, and business-to-business e-commerce, and security.

Discuss the Internet of Things (IoT). Describe how Fitbit and Apple’s Health App are examples of how an IoT device can interact with a Web 3.0 application.

What is cloud computing? Describe the three basic components of cloud computing.

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