Cloud Computing Tutorial (original) (raw)

Last Updated : 24 Mar, 2026

Cloud computing is a technology that allows users to access computing resources such as servers, storage, databases, networking, software, and analytics over the internet instead of using local computers or on-premise infrastructure.

Cloud services are typically offered on a **pay-as-you-go model, meaning users only pay for the resources they consume.

• Provides development platforms, storage, software, and databases online.
• Supports multiple service models and deployment models.
• Offers scalability, flexibility, security, and reduced costs.
• Eliminates the need for direct infrastructure management.

Cloud Computing Architecture

Cloud computing architecture refers to the components and sub-components required for cloud computing. These components typically refer to:

1. Front end ( Fat client, Thin client)
2. Back-end platforms ( Servers, Storage )
3. Cloud-based delivery and a network ( Internet, Intranet, Intercloud )

1. Front End ( User Interaction Enhancement )

The User Interface of Cloud Computing consists of 2 sections of clients. The Thin clients are the ones that use web browsers facilitating portable and lightweight accessibilities and others are known as Fat Clients that use many functionalities for offering a strong user experience.

2. Back-end Platforms ( Cloud Computing Engine )

The core of cloud computing is made at back-end platforms with several servers for storage and processing computing. Management of Applications logic is managed through servers and effective data handling is provided by storage. The combination of these platforms at the backend offers the processing power, and capacity to manage and store data behind the cloud.

3. Cloud-Based Delivery and Network

On-demand access to the computer and resources is provided over the Internet, Intranet, and Intercloud. The Internet comes with global accessibility, the Intranet helps in internal communications of the services within the organization and the Intercloud enables interoperability across various cloud services. This dynamic network connectivity ensures an essential component of cloud computing architecture on guaranteeing easy access and data transfer.

Why Cloud Computing?

• **Scalability : Cloud platforms allow organizations to quickly increase or decrease computing resources depending on demand.
• **Accessibility : Cloud services can be accessed from anywhere using devices such as laptops, smartphones, or tablets.
• **Cost Efficiency : Companies avoid large upfront investments in hardware because they only pay for the resources they use.
• **Security : Cloud providers implement advanced security controls including encryption, identity management, and network protection.
• **Reduced Infrastructure Management : Organizations no longer need to maintain physical servers, storage systems, and networking equipment.

Characteristics of Cloud Computing

• **On-Demand Self-Service: Users do not have to communicate with the IT staff of a service provider in order to provision and configure computing resources (servers, storage, databases, etc.). The self-service aspect makes it simple and quick to scale resources as needed.
• **Broad Network Access: Cloud services can be accessed via the internet using a variety of devices (laptops, desktops, tablets, and smartphones) from any location in the globe. This makes remote work and teamwork possible.
• **Resource Pooling: To service several clients, cloud companies combine their physical and virtual resources. This enables economies of scale and resource utilisation that are efficient, saving users money.
• **Rapid Elasticity: Resources can be quickly scaled up or down by users in response to changing needs. As a result, purchasing and maintaining physical infrastructure for peak workloads is no longer necessary.
• **Measured Service: Pay-per-use pricing methods are provided by cloud providers, allowing users to only pay for the services they really utilise. This eliminates the need for up-front capital expenditure and offers cost transparency.

Cloud Basics

• Introduction to Cloud Computing
• History of Cloud
• Evolution of Cloud Computing
• Advantages of Cloud Computing
• Cloud Computing Architecture
• Cloud Management
• Storage System in Cloud

Cloud - Deployment Models

• Cloud Deployment Models
• Public Cloud
• Private Cloud
• Hybrid Cloud
• Public vs Private vs Hybrid Cloud

Cloud - Service Models

• Cloud Service Models
• IaaS Layer
• PaaS Layer
• SaaS Layer

Cloud - Virtualization

• What is Virtualization
• Difference between Cloud Computing and Virtualization
• Characteristics of Virtualization
• Data Virtualization
• Hardware Virtualization
• Server Virtualization
• Types of Server Virtualization
• Storage Virtualization
• Network Virtualization
• OS Virtualization

Cloud - Service Provider

• Amazon Web Services
• Microsoft Azure
• Google Cloud Platform

Cloud Security

• Cloud Computing Security
• Privacy Challenges in Cloud Computing
• Security Threats in Implementing SaaS of Cloud Computing
• Multitenancy in Cloud computing
• Cloud Hypervisor Security
• Principles of Cloud Computing
• Cloud Computing Security Architecture
• Fault Tolerance in Cloud Computing
• Resiliency in Cloud Computing
• Scalability and Elasticity in Cloud Computing
• Service level agreements in Cloud Computing

Cloud Infrastructure and Technologies:

• On-Premises VS On Cloud
• Cloud Networking
• Server Consolidation in Cloud Computing
• Scaling in Cloud Computing
• Cloud Bursting vs Cloud Scaling
• Automated Scaling Listener in Cloud Computing
• Fog computing vs Cloud computing
• Overview of Multi-Cloud
• Resource Pooling in Cloud Computing
• Load Balancing in Cloud Computing
• What is Data Center in Cloud Computing
• Serverless Computing

Cloud Computing Services and Applications:

• Aneka in Cloud Computing
• XaaS in Cloud Computing
• DaaS in Cloud Computing
• What is Cloud Computing Replacing
• IoT and Cloud Computing
• Web Services in Cloud Computing
• CaaS in Cloud Computing