Cloud comouting
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This document provides an introduction to cloud computing, including its history, architecture, types, components, advantages, and disadvantages. It discusses how cloud computing originated from telecommunications companies changing to VPNs in the 1990s. The main types of cloud computing are public, private, and hybrid clouds. Public clouds are available to the general public while private clouds are dedicated to a particular organization. Hybrid clouds combine two or more cloud types. The core components of cloud computing are infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS). Advantages include low cost, device diversity, and automatic updating, while disadvantages comprise dependency, security risks, and requiring internet access.
Cloud comouting
- 1. An Introduction to cloud computing by Chetan pal
- 2. CLOUD COMPUTING INDEX History Introduction Cloud computing Architecture Types of Cloud computing Components of Cloud computing Cloud computing Advantage Cloud computing Disadvantage
- 3. HISTORY Concept originated from telecommunication companies changing to VPN. 1999: Salesforce.com – Delivery of application via web. In 2002 Amazon provided first public cloud AWS (Amazon web service). In 2006 Google docs etc.
- 4. INTRODUCTION Cloud computing is “Internet based computing”, where by shared resources, software and information are provided to computers and other devices on demand , like the electricity grid. Cloud computing is a paradigm shift following the shift from mainframe to client-server in the early 1980s.Details are abstracted from the user, who no longer have need for expertise in, or control over, the technology infrastructure "in the cloud “ that supports them.
- 5. ARCHITECTURE Cloud service Cloud platform Cloud storageCloud infrastructure Cloud architecture
- 6. TYPES OF CLOUD COMPUTING
- 7. PUBLIC CLOUD Public clouds are made available to the general public by a service provider who host the cloud infrastructure. Generally, public could providers like Amazon AWS, Microsoft and Google own and operate the infrastructure and offer access over the Internet. With this model, customer have no visibility or control over where the infrastructure is located. It is important to note that all customers on public clouds share the same infrastructure pool with limited configuration , security protections and availability variances.
- 8. PRIVATE CLOUD Private cloud is cloud infrastructure dedicated to a particular organization. Private clouds allow businesses to host applications in the cloud, while addressing concerns regarding data security and control which is often lacking in a public cloud environment . It is not shared with other organizations, whether managed internally or by a third party , and it can be hosted internally or externally.
- 9. HYBRID CLOUD Hybrid clouds are a composition of two or more clouds (private, community or public) that remain unique entities but are bound together offering the advantages of multiple deployment models. In a hybrid cloud, you can leverage third party cloud providers in either a full or partial manner, increasing the flexibility of computing. Augmenting a traditional private cloud with the recourses of public cloud can be used to manage any unexpected surges in workload.
- 10. COMPONENTS OF CLOUD COMPUTING 1.laaS(Infrastructure as a service): IaaS refers to computer infrastructure that’s delivered as a service. 2.PaaS(Platform as a service): Offer the run time environment or API for application. It also offer development & deployment tools, required to develop application. 3.SaaS(Software as a service): SaaS refers to software that’s made available as a web-based service.
- 11. 1. Just Infrastructure(LaaS) 2. Infrastructure + Platform(PaaS) 3.Infrastructure+Platform+Software Application Operating system Hardware Network Software ( ERP) Platform Infrastructure
- 13. ADVANTAGE Low cost Device diversity Easy to learn and understand Automatic updating
- 14. DISADVANTAGE Dependency Risk Requires a constant internet connection Security