Cloud Computing.pptx
- 1. Cloud Computing Instructor : Kainat Ibrar
- 2. Cloud Computing • Cloud computing provides us a means by which we can access the applications as utilities, over the internet. It allows us to create, configure, and customize applications online. • With cloud computing users can access database resources via the internet from anywhere for as long as they need without worrying about any maintenance or management of actual resources.
- 3. What is Cloud? • The term cloud refers to a network or internet. • In other words, we can say that cloud is something, which is present at remote location. • Cloud can provide services over network, i.e., On public networks or on private networks, i.e., WAN, LAN or VPN. • Applications such as e-mail, web conferencing, customer relationship management (CRM), all run in cloud.
- 4. What is Cloud Computing? • Cloud Computing refers to manipulating, configuring, and accessing the applications online. • It offers online data storage, infrastructure and application. • Cloud Computing is both a combination of software and hardware based computing resources delivered as a network service.
- 5. Why Do We Need Cloud Computing?
- 6. Why we need cloud computing? • Hosting one’s own website require large amount of servers, money, management for traffic control over the internet, constant maintenance is required and need security for user’s data. • All things are going online such as online shopping, online reservations etc. that result in increasing the amount of data day by day. • Large amount of space and money is required to manage all these. • All these issues like cost , data security, maintenance and space is resolved by the clouds. • As they have large amount of space that is available online for usage. • They have collection of data centers- ( where you store your data or host your applications)
- 7. Why we need cloud computing? • There was a group of people or organization that rented or bought these servers storage places. • All you have to do was, go a head and rent those resources only to the amount you needed • Also take those resources for the time you need it and pay amount accordingly. So, this is what cloud did. • All you need is a good internet connection. So it makes the world accessible, it let you have your application where you want to manage them accordingly.
- 8. Types of Cloud Computing
- 9. Deployment Models • Deployment models define the type of access to the cloud • Can have any of the four types of access: i. Public ii. Private iii. Hybrid iv. Community.
- 10. Public Cloud The cloud infrastructure is made available to the general public over the internet and is owned by third-party organizations. The most popular public cloudsinclude : • AmazonWebServices • Google AppEngine • Microsoft Azure. Deployment Model
- 11. Private Cloud The cloud infrastructure is exclusively operated by a single organization. It can be managed by the organization or a third party. Some private clouds are : • VMWare • VCloudDirector • OpenStack. Deployment Model
- 12. Hybrid Cloud • Hybrid cloud is a mix of computing resources provided byboth private and public clouds. • In this model companies can use public cloud for transfer of non-confidential data and switch on to private cloud in case of sensitive data transfer or hosting of critical applications. • For example: Federal agencies opt for private clouds when sensitive information is involved Also, they use the public cloud to share datasets with general public or other government departments Deployment Model
- 13. Service Models • These are the reference models on which the Cloud Computing is based. These can be categorized into three basic service models as listed below:
- 14. Infrastructure As A Service (Iaas) • IaaS is a cloud service that provides basic computing infrastructure • Services are available on pay-for-what-you-use model • IaaS provides access to fundamental resources such as physical machines, virtual machines, virtual storage, etc. 1. billed based on usage 2. Multi-tenant Environment 3. Can be coupled with Managed Services for OS and application support
- 15. IaaS Examples
- 16. Platform as a Service (PaaS) • PaaS provides the runtime environment for applications, development & deployment tools, etc. • PaaS provides all of the facilities required to support the complete life cycle of building and delivering web applications and services entirely from the internet. • Applications must be developed with a particular platform in mind • Multi tenant environments. • Highly scalable multi tier architecture.
- 17. PaaS Examples
- 18. Software as a Service (SaaS) • SaaS model allows to use software applications as a service to end users. • SaaS is a software delivery methodology that provides licensed multi-tenant access to software and its functions remotely as a Web-based service. • Usually billed based on usage • Usually, multi tenant environment • Highly scalable architecture
- 19. SaaS Examples
- 20. Service Models
- 21. • Create an Account – User name and password • Content lives with the account in the cloud • Log onto any computer with Wi-Fi to find your content CLOUD STORAGE
- 22. Do you Use the Cloud?
- 23. PRACTICALLY LIMITLESS AND EASILY ACCESSIBLE IT SAVES THE COST OF INFRASTRUCTURE AND HARDWARE MAINTAINANCE IT PROVIDES THE ACCESS TO COMMERCIALY AVAILABLE APPLICATIONS Benefits of Cloud Computing
- 25. Requires a constant Internet connection Does not work well with low-speed connections Features might be limited Stored data can be lost Stored data might not be secure Drawbacks
- 26. Lecture End
Editor's Notes
- #15: Multi-tenant refers to a kind of architecture where a single instance of software runs on a server and serves multiple customers.