Cloud Computing - Fundamentals and Applications
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1) Cloud computing allows on-demand access to configurable computing resources like servers and networks that can be provisioned with minimal management effort. However, some see it as proprietary systems that increase costs over time. 2) Cloud computing provides scalable resources over the internet as a service, but concerns include reliability, availability, security, and lack of customization. 3) Fog computing extends cloud computing to the edge of networks by performing storage and processing near data sources like IoT devices to enable low latency applications. It provides scalable services across geographically distributed devices.
![“we've redefined cloud
computing to include everything
that we already do. I can't think
of anything that isn't cloud
computing […]. The computer
industry is the only industry that
is more fashion-driven than
women's fashion. Maybe I'm an
idiot, but I have no idea what
anyone is talking about. What is
it? It's complete gibberish. It's
insane. When is this idiocy
going to stop? [...] I don't
understand what we would do
differently in the light of cloud.”
Farber, Dan. Oracle’s CEO (2008)](https://image.slidesharecdn.com/cc-slides-190417152746/85/Cloud-Computing-Fundamentals-and-Applications-3-320.jpg)
Cloud Computing - Fundamentals and Applications
- 1. Cloud Computing Fundamentals and Applications Dr Emiliano Reynares ereynares@frsf.utn.edu.ar
- 2. “cloud computing was simply a trap aimed at forcing more people to buy into locked, proprietary systems that would cost them more and more over time.” Richard Stallman, founder of the Free Software Foundation and creator of the computer operating system GNU (2008)
- 3. “we've redefined cloud computing to include everything that we already do. I can't think of anything that isn't cloud computing […]. The computer industry is the only industry that is more fashion-driven than women's fashion. Maybe I'm an idiot, but I have no idea what anyone is talking about. What is it? It's complete gibberish. It's insane. When is this idiocy going to stop? [...] I don't understand what we would do differently in the light of cloud.” Farber, Dan. Oracle’s CEO (2008)
- 4. Source: Wikipedia (English version)
- 5. A model for enabling: 1) ubiquitous 2) convenient, and 3) on-demand network access to a shared pool of configurable computing resources that can be rapidly provisioned and released with minimal management effort Cloud Computing (NIST, 2011) Source: NIST Definition of Cloud Computing (2011). NIST Cloud Computing Synopsis and Recommendations (2012)
- 6. Source: Wikipedia (English version)
- 7. 1 of 5. On demand self-service Cloud Computing 5 essential characteristics
- 8. 2 of 5. Broad network access Cloud Computing 5 essential characteristics
- 9. 3 of 5. Resource pooling Cloud Computing 5 essential characteristics
- 10. 4 of 5. Rapid elasticity Cloud Computing 5 essential characteristics
- 11. 5 of 5. Measured service Cloud Computing 5 essential characteristics
- 12. A collection of hardware and software that enables the five essential characteristics of cloud computing What’s cloud infrastructure?
- 13. 1 of 3. Software as a Service (SaaS) Cloud Computing 3 service models
- 14. 2 of 3. Platform as a Service (PaaS) Cloud Computing 3 service models
- 15. 3 of 3. Infrastructure as a Service (IaaS) Cloud Computing 3 service models
- 16. 1 of 4. Private Cloud Cloud Computing 4 deployment models
- 17. 2 of 4. Community Cloud Cloud Computing 4 deployment models
- 18. 3 of 4. Public Cloud Cloud Computing 4 deployment models
- 19. 4 of 4. Hybrid Cloud Cloud Computing 4 deployment models
- 20. cloud consumer or customer A person or organization that is a customer of a cloud client A machine or software application that accesses a cloud over a network connection cloud provider or provider An organization that provides cloud services To clarify...
- 21. A technology that allows to create multiple simulated environments or dedicated resources from a single physical hardware system Virtualization
- 22. Fundamental technology that powers cloud computing Virtualization
- 23. 1 of 3. Network Virtualization Virtualization Used for 3 purposes
- 24. 2 of 3. Storage Virtualization Virtualization Used for 3 purposes
- 25. 3 of 3. Server Virtualization Virtualization Used for 3 purposes
- 26. Main difference is that a true cloud provides self-service capability, elasticity, automated management, scalability and pay-as you go service that is not inherent in virtualization. Cloud Computing versus Virtualization
- 27. The use of widely distributed computer resources to reach a common goal. The grid can be thought of as a distributed system with non- interactive workloads that involve a large number of files. Grid Computing
- 28. Each node set to perform a different task/application. Grid computers tend to be heterogeneous and geographically dispersed. Grids are often constructed with general-purpose grid middleware software libraries. Grid Computing
- 30. Two original goals: 1. to do useful scientific work by supporting an observational analysis to detect intelligent life outside Earth 2. to prove the viability and practicality of the "volunteer computing" concept SETI@home A grid computing initiative
- 31. A service provisioning model in which a service provider makes computing resources and infrastructure management available to the customer as needed, and charges them for specific usage rather than a flat rate Utility Computing
- 32. 1. Reliability Probability that a system will produce correct outputs up to some given time. Cloud Computing “cons”
- 33. 2. Availability of services and data Probability that a system is operational at a given time, i.e. the amount of time a device is actually operating as the percentage of total time it should be operating. Cloud Computing “cons”
- 34. 3. Security Protection of computer systems from theft or damage to their hardware, software or electronic data, as well as from disruption or misdirection of the services they provide. Cloud Computing “cons”
- 35. 4. Complexity Cloud Computing “cons”
- 36. 5. Costs Cloud Computing “cons”
- 37. 6. Regulations and legal issues Cloud Computing “cons”
- 38. 7. Performance Amount of work accomplished by a computer system. Cloud Computing “cons”
- 39. 8. Migration Involves moving software code or data from one platform to another, minimizing reengineering. Cloud Computing “cons”
- 40. 9. Reversion Drop of one or more recent changes in favor of a return to a previous version of the material at hand. Cloud Computing “cons”
- 41. 10. The lack of standards Cloud Computing “cons”
- 42. 11. Limited customization Cloud Computing “cons”
- 43. 12. Privacy Relationship between the collection and dissemination of data, technology, and the public expectation of privacy, legal and political issues surrounding them Cloud Computing “cons”
- 44. A layered model for enabling ubiquitous access to a shared continuum of scalable computing resources Fog Computing
- 45. Source: NIST Fog Computing Conceptual Model. (https://doi.org/10.6028/NIST.SP.500-325)
- 46. Core component of the fog computing architecture. Either physical components or virtual components, tightly coupled with the smart end devices or access networks, and provide computing resources to these devices. Fog Node
- 47. 1 of 6. Contextual location awareness, and low latency Fog Computing 6 essential characteristics
- 48. 2 of 6. Geographical distribution Fog Computing 6 essential characteristics
- 49. 3 of 6. Heterogeneity Fog Computing 6 essential characteristics
- 50. 4 of 6. Interoperability and federation Fog Computing 6 essential characteristics
- 51. 5 of 6. Real-time interactions Fog Computing 6 essential characteristics
- 52. 6 of 6. Scalability and agility of federated, fog-node clusters Fog Computing 6 essential characteristics
- 53. 1 of 3. Software as a Service (SaaS) Fog Node 3 service models
- 54. 2 of 3. Platform as a Service (PaaS) Fog Node 3 service models
- 55. 3 of 3. Infrastructure as a Service (IaaS) Fog Node 3 service models
- 56. 1 of 4. Private fog node Fog Node 4 deployment models
- 57. 2 of 4. Community fog node Fog Node 4 deployment models
- 58. 3 of 4. Public fog node Fog Node 4 deployment models
- 59. 4 of 4. Hybrid fog node Fog Node 4 deployment models
- 60. Lightweight fog nodes Mist Computing
- 61. Network layer encompassing the end devices and their users, to provide, for example, local computing capability on a sensor, metering or some other devices that are network-accessible. It is also often referred to as IoT network. Edge Computing
- 62. Fog computing runs applications in a multi-layer architecture that decouples and meshes the hardware and software functions, allowing for dynamic reconfigurations for different applications while performing intelligent computing and transmission services. Fog Computing versus Edge Computing
- 63. Fog computing is hierarchical In addition to computation and networking, fog computing also addresses storage, control and data-processing acceleration. Fog Computing versus Edge Computing
- 64. Edge computing runs specific applications in a fixed logic location and provides a direct transmission service. Edge computing tends to be limited to a small number of peripheral devices Fog Computing versus Edge Computing