The document discusses the history and components of the Internet and World Wide Web. It begins with how the Internet originated from ARPANET, a research network project started by the Pentagon. It then explains how the Internet has grown tremendously over the years. Key components and services of the Internet are then described, including how to connect to the Internet, what an IP address and domain name are, how email and browsing the World Wide Web works. The different types of websites such as news, business, personal sites are also outlined. Lastly, it covers multimedia, publishing websites, e-commerce, and other Internet protocols.
Subject Outline
introduction to Information communication and technology
1.Introduction to ICT
2.Basic building blocks of a computer
3.Hardware system of a computer
4.Software system of a computer
5.Computing algorithms
6.Computer networks
7.Computer security
Subject Outline
introduction to Information communication and technology
1.Introduction to ICT
2.Basic building blocks of a computer
3.Hardware system of a computer
4.Software system of a computer
5.Computing algorithms
6.Computer networks
7.Computer security
“Imagine life without the evolution of technology. What kind of life do we have right now??? Technology has been part of our life and it is one of the key ingredient for the survival of mankind to living in a fast-phase environment”
Computer Science & Information Systems
First attempt to offer a broad view of CS & IS field by comparing and relate its disciplines
Luis Borges Gouveia
November 2013
Application of information communication technology (ict)Kishor Satpathy
Presented in National Seminar on Networking of Library and Information Centres of North East India in Digital Environment (NLICDE-2011)
(21-23 March 2011)
ORGANISED BY
NIT Silchar
“Imagine life without the evolution of technology. What kind of life do we have right now??? Technology has been part of our life and it is one of the key ingredient for the survival of mankind to living in a fast-phase environment”
Computer Science & Information Systems
First attempt to offer a broad view of CS & IS field by comparing and relate its disciplines
Luis Borges Gouveia
November 2013
Application of information communication technology (ict)Kishor Satpathy
Presented in National Seminar on Networking of Library and Information Centres of North East India in Digital Environment (NLICDE-2011)
(21-23 March 2011)
ORGANISED BY
NIT Silchar
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See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
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We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
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The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
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Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
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Length: 30 minutes
Session Overview
-------------------------------------------
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- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
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https://www.rttsweb.com/jmeter-integration-webinar
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2. Lesson 2 – Objectives
Discuss the history of the Internet
Explain how to access and
connect to the Internet
Analyze an IP address
Identify the components of a Web address
Describe the types of Web sites
Recognize how Web pages
use graphics, animation, audio,
video, virtual reality, and plug-ins
Identify the steps required for Web publishing
Describe the types of e-commerce
Explain the purpose of a Web browser
Explain how e-mail, FTP, newsgroups
and message boards, mailing lists, chat rooms,
Instant messaging, and Internet telephony work
Search for information on the Web
Identify the rules of netiquette
Next
3. The Internet
• What are some services found on the Internet?
p. 68 Fig. 2-1
Next
4. History of the Internet
• How did the Internet originate?
ARPANET
Goal:
To allow scientists
at different
locations to share
information
p. 69
Networking project by
Pentagon’s Advanced
Research Projects
Agency (ARPA)
Goal:
To function if
part of network
were disabled
Became
functional
September 1969
Next
5. History of the Internet
• How has the Internet grown?
Today
More than 200 million host nodes
1984
More than 1,000 host nodes
1969
Four host nodes
p. 69
Next
6. History of the Internet
• Who controls the Internet?
No one — it is a public, cooperative, and
independent network
Several organizations set standards
c
c
World Wide Web
Consortium (W3C)
Oversees research, sets
standards and guidelines
Tim Berners-Lee, director
p. 70
Internet2 (I2)
Internet-related research and
development project
Develops and tests advanced
Internet technologies
Next
7. How the Internet Works
• How can you connect to the Internet?
Slow-speed
technology
Dial-up access
modem in your
computer uses a
standard telephone line
to connect to the Internet
Connection must be established
each time you log on.
Slow but inexpensive
p. 70
High-speed
connection
Digital subscriber line (DSL),
cable telephone Internet
services (CATV), cable modem,
fixed wireless, and satellite modems
Connection is always on—
whenever the computer
is running
Next
8. How the Internet Works
• What are ways to access the Internet?
1. ISP, Regional
or National
2. OSP (AOL and
MSN, for example)
3. Wireless Internet
Service Provider
p. 71 – 72 Fig. 2-2
Next
9. How the Internet Works
•How might data travel the Internet using a
cable modem connection?
p. 73 Fig. 2-3
Next
10. How the Internet Works
• What is a domain name?
Text version of Internet protocol (IP) address
p. 73 Figs. 2-4 – 2-5
Number that uniquely identifies
each computer or device
connected to Internet
Next
11. The World Wide Web
What is the World Wide Web (WWW)?
A worldwide collection of electronic documents
Also called the Web
Each electronic document is called a Web page
Can contain text, graphics, sound, video, and built-in connections
A Web site is a collection of related Web pages
p. 75
Next
12. The World Wide Web
• What is a Web browser?
Program that allows you to view Web pages
Microsoft
Internet
Explorer
Safari
p. 75
Netscape
Mozilla
Opera
Next
13. The World Wide Web
•How does a Web browser display a home page?
Step 2.
If necessary,
connect to the
Internet
Step 1.
Click the Web browser
program name
Step 3.
Connection to the
Internet occurs, and a
home page displays
p. 75 Fig. 2-6
Next
14. The World Wide Web
• What is a home page?
The first page that a Web site presents
Often provides connections to other Web pages
p. 76 Fig.2-1a
Next
15. The World Wide Web
•How do handheld computers and
cellular telephones access the
Web?
Use a microbrowser
that displays Web
pages that contain
mostly text
p. 76 Fig. 2-7
Must be Web-enabled
Next
16. The World Wide Web
• What is downloading?
p. 76
The process of a computer receiving information
Depending upon connection speed, downloading can
take from a few seconds to several minutes
Next
17. The World Wide Web
• What is a URL?
Unique address for a
Web page
A web server delivers the Web page
to your computer
p. 76 Fig. 2-8
Next
18. The World Wide Web
• What is a link?
Built-in connection to another related
Web page location
p. 77
Item found elsewhere
on same Web page
Different Web page
at same Web site
Web page at a different
Web site
Next
19. The World Wide Web
• How can you recognize links?
Pointer changes to a small hand
when you point to
a link
A link can be text
or an image
Text links are
usually underlined
and in a different
color
p. 77 Fig. 2-9
Next
20. The World Wide Web
• What is a subject directory?
Search tool with organized set of topics and subtopics
Lets you find information by clicking links rather than
entering keywords
p. 78 – 79 Fig. 2-11
Next
21. The World Wide Web
• What is a search
engine?
Program used to find
Web sites and Web
pages by entering
words or phrases
called search text
p. 80
Also called a keyword
Next
22. The World Wide Web
• What is a hit?
Any Web site name that is listed as the result of a search
Step 2.
Select type of
search you want
to run
Step 1. Go to search engine
Step 3. View hits
Step 4.
p. 80 Fig. 2-12
Click
link to view
Web site
Next
23. The World Wide Web
• What are the nine basic types of Web sites?
Portal
News
Informational
Business/Marketing
Educational
Entertainment
Advocacy
Blog
Personal
p. 82 – 84 Fig. 2-14
Next
24. The World Wide Web
• What is a portal?
A Web site that offers a variety of services from one,
convenient location, usually for free
p. 82 Fig. 2-14a
Searching, sports, e-mail,
news, weather, auctions,
Web communities
(Web sites that join
people with similar
interests)
Next
25. The World Wide Web
• What is a news Web site?
Contains newsworthy material
Stories and articles relating to current events, life,
money, sports, and the weather
p. 82 Fig. 2-14b
Next
26. The World Wide Web
• What is an informational Web site?
Contains factual information
Created by organizations and government agencies
p. 82 Fig. 2-14c
Next
27. The World Wide Web
• What is a business/marketing Web site?
Contains content that promotes products or services
Allows you to purchase products or services online
p. 82 Fig. 2-14d
Next
28. The World Wide Web
• What is an educational Web site?
Offers avenues for formal and informal teaching
and learning
p. 82 Fig. 2-14e
Some companies
offer online training
for employees
Some colleges offer
online classes and
degrees
Next
29. The World Wide Web
• What is an entertainment Web site?
Offers an interactive and engaging environment
featuring music, video, sports, games, and more
p. 84 Fig. 2-14f
Next
30. The World Wide Web
• What is an advocacy Web site?
Contains content that describes a cause, opinion,
or idea
p. 84 Fig. 2-14g
Next
31. The World Wide Web
• What is a blog?
Uses a regularly updated journal format to reflect the
interests, opinions, and personalities of the author and
sometimes site visitors
p. 84 Fig. 2-14h
Next
32. The World Wide Web
• What is a personal Web site?
Web page maintained by private individual
Reasons: sharing life experience with the world
or job hunting
p. 84 Fig. 2-14i
Next
33. The World Wide Web
• What are the guidelines for evaluating the value
of a Web site?
Affiliation
Audience
Currency
p. 84 Fig. 2-15
Authority
Design
Content
Objectivity
Next
34. The World Wide Web
• What is multimedia?
Application integrating text with other media elements
p. 85 Fig. 2-16
Graphics
Animation
Audio
Video
Virtual reality
Next
35. The World Wide Web
• What graphics formats are used on the Web?
BMP
JPEG
(pronounced JAY-peg)
GIF
(pronounced JIFF)
p. 85 Fig. 2-17
PNG
(pronounced ping)
TIFF
Next
36. The World Wide Web
• What is a thumbnail?
Small version of a larger
graphic —used to
improve Web page display
time
c
p. 86 Fig. 2-18
Usually click
on thumbnail to
display larger
graphic
Next
37. The World Wide Web
• What is animation?
p. 86
Appearance of motion created by
displaying a series of still images
in sequence
Next
38. The World Wide Web
• What is audio?
Music, speech, or any other sound
Individual compressed sound files
that you download from the Web to
your computer
Common Web audio file formats are
AA, AAC, AIFF, ASF, MP3, WAV,
WMA, RA, and QT
Once downloaded, you can play
(listen to) the contents of the files
p. 86 Fig. 2-20
Next
39. The World Wide Web
• What is streaming audio?
The process of
transferring audio
in a continuous
and even flow
p. 86
Enables you to
listen to music
as it downloads
to your computer
Next
40. The World Wide Web
• What is video?
Consists of full-motion images that are
played back at various speeds
MPEG (Moving Pictures Experts Group)
is popular video compression
standard
p. 88 Fig. 2-21
Next
41. The World Wide Web
• What is virtual reality (VR)?
Use of computers to simulate real or imagined
environment
Appears as a three dimensional (3-D) space
p. 88 Fig. 2-22
Used for games and many
practical applications
Next
42. The World Wide Web
• What are plug-ins?
Programs that
extend the
capability of
a browser
You can
download many
plug-ins at no
cost from various
Web sites
p. 89 Fig. 2-23
Next
43. Web Publishing
• What is Web publishing?
Development and maintenance of Web pages
Step 2.
Step 1.
Plan the
Web site
Analyze and
design the
Web site
Step 3.
Create the
Web site
Step 5.
Maintain
the Web site
Step 4.
Deploy the
Web site
p. 89 Fig. 2-24
Next
44. E-Commerce
• What is E-commerce?
Short for electronic commerce
Business transaction that occurs over
the Internet
Business to consumer (B2C)
Sale of goods to general public
Consumer to consumer (C2C)
One consumer sells directly to another
Business to business (B2B)
Business providing goods and
services to other businesses
p. 91 Fig. 2-25
Next
45. Other Internet Services
• What is E-mail?
Short for electronic mail
The transmission of messages and files via a computer
network
p. 92 - 94
Messages can consist of simple text or can contain attachments,
such as documents, graphics, or audio/video clips
Internet access providers usually provide an e-mail program
Some Web sites—such as MSN Hotmail and Yahoo!—provide
free e-mail services
One of the original services on the Internet
Next
46. Video: E-mail Basics
Learn how to use e-mail quickly and efficiently
low quality
(click to start)
high quality
(click to start)
Next
47. Other Internet Services
• How do you send an e-mail message?
Step 2.
Step 1.
Click the New Mail Message button
Start an e-mail
program
(Microsoft
Outlook, for
example)
Step 3.
Enter the recipient’s
e-mail address, the
subject, and the
message
Step 5.
The recipient opens the
message
p. 93 Fig. 2-26
Step 4.
Click the Insert file button if
you want to attach a picture, for
example, and click Send
Next
48. Other Internet Services
• What is an e-mail address?
Unique name that consists of a user name and domain
name that identifies the user
p. 94 Fig. 2-27
Next
49. Other Internet Services
• How does an e-mail message travel?
Step 1.
Using e-mail
software, you
create and send
message
Step 2.
Your software
contacts software
on your ISP’s
outgoing mail
server
Step 4.
When recipient uses
e-mail software to check
for e-mail messages, the
message transfers from
incoming mail server to
recipient’s computer
Step 3.
p. 95 Fig. 2-28
Software on outgoing mail server
determines best route for data and sends
message, which travels along Internet
routers to recipient’s incoming mail server
Next
50. Other Internet Services
• What is FTP?
File Transfer Protocol—Internet standard that allows
you to upload and download files with other computers
on the Internet
p. 96 Fig. 2-29
Next
51. Other Internet Services
• What are newsgroups and message boards?
Newsgroup
Online area where users discuss a particular subject
Message board
Type of discussion group
Many Web sites use
message boards
because they are
easier to use
p. 95 Fig. 2-30
Next
52. Other Internet Services
• What is a mailing list?
Group of e-mail
addresses given a single
name
When a message is sent
to the mailing list,
everyone on the list
receives the message
To add your name to a mailing list
you must subscribe to it; to
remove your name you must
unsubscribe
p. 97 Fig. 2-31
Next
53. Other Internet Services
• What is a chat?
Real-time typed conversation
that takes place on a computer
Chat room is location on
server that permits users
to discuss topics of interest
p. 98 Fig. 2-32
Next
54. Other Internet Services
• What is instant messaging (IM)?
A real-time Internet communications service that notifies you when one
or more people are online and allows you to exchange messages or files
Step 2.
The server determines if any of your
established friends, family, or
coworkers, called buddies, are online
Step 1.
Login to the IM
server
IM Server
Step 3.
messaging Server
You send instant
messages to an
online buddy
Step 4.
p. 98 Fig. 2-33
Your Instant Message travels
through a messaging server and
then to the online buddy
Next
55. Other Internet Services
• What is internet telephony?
Enables users to speak to other users over the Internet
using their computer
p. 99 Fig. 2-34
Next
56. Netiquette
• What is netiquette?
Code of acceptable behaviors users should follow while
on the Internet
Golden Rule: Treat others as
you would like them to treat you.
p. 100
Next
57. Summary of the Internet and World Wide Web
History and structure of the Internet
Electronic commerce
The World Wide Web
Other Internet services
Web Publishing
Netiquette