2. Content
Introduction
Internet and World Wide Web
Communication and Collaboration
Cloud Computing
Internet of Things (IoT)
Online Entertainment and Streaming
E-commerce
Online Banking
E-Learning
3. Introduction
In today's digital era, computer networks play a vital role in connecting people, devices, and
information across the globe. From seamless communication to transformative technological
advancements, computer networks have revolutionized the way we live and work
4. Internet and World Wide Web
The internet is a global network of computer networks
interconnected through standardized protocols. It
enables the exchange of data and information across
the globe, connecting billions of devices and users.
Computer network is the BACKBONE of Internet.
The World Wide Web, often referred to as the Web, is
a system of interconnected documents and resources
accessible via the internet. It is built on top of the
internet infrastructure and relies on computer
networks for data transmission.
5. Internet and World Wide Web
Benefits of internet and WWW
Access to Information
Communication and Connectivity
E-commerce and Online Shopping
Global Collaboration and Remote Work
Entertainment and Media
Online Education and E-Learning
Social Networking and Community Building
Personal and Professional Development
Innovation and Entrepreneurship
6. Communication and Collaboration
Instant Messaging and Email
Ex: WhatsApp, Viber, Gmail, Ymaill
Video Conferencing
Ex: Zoom, Google Meet, Microsoft Teams
7. Communication and Collaboration
Collaborative Document Editing
Ex: Google Docs/ Sheets/ Slides, Microsoft Office 365
Remote Teamwork
Ex: Jira, Trello, Asana
8.
9. Communication and Collaboration
Benefits of communication and collaboration with computer networks
Global Connectivity
Real-Time Communication
Seamless File Sharing
Efficient Project Management
Enhanced Team Collaboration
Increased Productivity
Access to Remote Expertise
Enhanced Innovation
Cost-Effectiveness
10. Cloud Computing
Cloud computing is a model for delivering computing resources and
services over the internet.
Instead of owning and managing physical infrastructure, users can
access and utilize virtualized resources, such as computing power,
storage, and software applications, from cloud service providers.
Cloud computing deployment models
Private Cloud - Private cloud infrastructure is dedicated to a single
organization or user, either on-premises or hosted by a third-party
provider.
Public Cloud - Public cloud services are provided over the internet by third-
party cloud service providers.
Hybrid Cloud - Hybrid cloud combines the use of both public and private
cloud resources.
11. Cloud Computing
Cloud computing service models
Software as a Service (SaaS) - SaaS delivers complete software applications over the internet.
Ex: Office 365, Google Workspace, Dropbox
Platform as a Service (PaaS) - PaaS offers a platform and environment for developing, testing, and
deploying applications.
Ex: GitHub, Google App Engine, Red Hat OpenShift
Infrastructure as a Service (IaaS) - IaaS provides virtualized computing resources, such as virtual
machines, storage, and networking.
Ex: Amazon Web Services (AWS), Google Compute Engine (GCE), Microsoft Azure, Oracle Cloud
13. Cloud Computing
Benefits of Cloud Computing
Flexibility and Scalability
Cost Efficiency
Accessibility
Reliability and High Availability
Collaboration and Remote Work
Data Security and Compliance
14. Internet of Things (IoT)
IoT refers to a network of physical devices, vehicles, appliances, and other objects embedded
with sensors, software, and connectivity capabilities that enable them to collect and exchange
data over the internet.
It refers to a network of physical devices, vehicles, appliances, and other objects embedded
with sensors, software, and connectivity capabilities that enable them to collect and exchange
data over the internet.
Functions of IoT devices,
Gather and share data
Enabling them to monitor
Respond to the surrounding environment
Making informed decisions and taking actions accordingly
15. Internet of Things (IoT)
Examples:
Smart homes
Connected Cars
Smart Home Appliance
Smart security systems
Smart Agriculture Equipment
16. Online Entertainment and Streaming
Online entertainment and streaming is delivering of audio, video, and multimedia content
over the internet to users' devices in real-time.
This form of entertainment has gained significant popularity in recent years, revolutionizing
how people consume media and engage with entertainment content.
Example for online entertainment and streaming
Netflix
Disney+
Spotify
Hulu
YouTube
Twitch
17. E-Commerce
Electronic Commerce or E-Commerce is the buying and selling of goods and services over the
internet. It involves online transactions, electronic funds transfers, and online business
operations.
Key Features of E-Commerce
Online Stores
Global Reach
Convenience and Accessibility
Secure Online Payments
Personalization and Recommendations
Customer Reviews and Ratings
18. Online Banking
Online banking, also known as internet banking or electronic banking. It can provide banking
services and financial transactions conducted over the internet.
It enables individuals and businesses to manage their finances remotely.
Key features of online banking:
Account Management
Mobile Banking
Secure Transactions
24/7 Availability
Automated Services
Enhanced Customer Support
19. E-Learning
E-Learning is the use of digital technology and the internet to deliver educational content and
facilitate learning experiences.
It has gained significant popularity as a flexible and accessible approach to education.
E-learning tools
Learning Management Systems (LMS) / Virtual Learning Environments (VLE)
Video Conferencing and Webinar Platforms (Ex: Zoom, Google meet)
Video hosting and streaming platforms
Gamification tools (Ex: Kahoot, Classcraft, Qizlet)
Quiz tools (Ex: Google Forms)
Mobile Learning apps (Ex: Coursera, Udemy, Duolingo)
20. Summery
Introduction to Computer Network
Data communication / Computer Network
Components of Computer Network
Advantages and Disadvantages of Computer Network
Network Peripherals & Devices
Hub / Repeater
Switch
Router
Firewalls
LAN Configuration
Subneting
IP Classes
Applications of Networks