Cloud computing
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The document discusses cloud computing, including what can be done with it, its key characteristics, the three main types (SaaS, PaaS, IaaS), pros and cons of each type, and examples. It notes that cloud computing resources can be dynamically scaled and accessed from any device, are task-centric rather than based on specific software/hardware, and are charged based on usage. The three types - SaaS, PaaS, IaaS - respectively provide access to existing apps online, environments for creating new apps, and online infrastructure to develop and run apps. Cloud computing allows firms to remain competitive through cost savings, agility, and not needing to generate their own resources. It also enables
Cloud computing
- 2. Overview
- 4. What I Can Do with it?
- 5. Online Office Apps Online Photo, Video, Audio Editor Cloud Website Builders Cloud E-mail Packages Cloud Storage Cloud Desktops Online Business Apps Virtual Meeting Tools Web Services
- 7. Dynamically Scalable • Anybody can obtain as much or as few online computing resources as they require at any particular point of time. Device Independent • Cloud computing resources can be accessed from any type of computer. Provided that it has an internet connection and a web browser. Task Centric • The usage model is based entirely around what users want to achieve, rather than any particular s/w, h/w or n/w infrastructure. Users do not have to purchase or install anything before using a cloud computing resource. Nor do they have to maintain or pay for anything during periods in which no resources are being used. Charged on a usage basis • It has variable cost. All of the cost of cloud computing are on a per usage or variable basis.
- 8. Three ways to Cloud Compute SaaS IaaSPaaS SaaS, PaaS, and IaaS all involve a cloud vendor supplying servers on which their customers can store data and run applications
- 9. • Free or paid via subscription Software as a Service Existing Computer Apps are accessed over the internet rather than being installed on a local computing device or in local data center Pros & Cons • Accessible from any type of computer • Facilitates collaborate working • Generic apps not always suitable for business use… Examples
- 10. • Rapid development @ low cost Platform as a Service Provides environment and tools for creating new online apps Pros & Cons • Private or public deployment • Limits developers to provider languages and tools • Risk of vendor lock-in Examples
- 11. Infrastructure as a Service Cloud suppliers provide online infrastructure on which their customers can store and develop and run whatever apps they want. Allows existing apps to be run on a cloud supplier’s h/w Cloud Computing Infrastructure Server Real Virtual Instance Virtualization Computers Many users to share the processing power of one physical server Allows
- 12. The Three Reasons to Cloud ComputeCloud Computing will be essential to remain competitive 1. • Cloud computing helps firms to remain competitive as customers can reap cost savings of up to 80% to cloud compute than to run an in- house data centre. 2. • Cloud computing ables firms to move quickly and easily than their competitors. 3. • Cloud computing can be compare with electric grid as it is freed companies from having to generate their own energy in-house. “Minimum Resource, Maximum Utilization” 1. • Cloud computing removes the need for most users to have high-power PCs and laptops. 2. • Lower-power computers based around processors such as Intel's Atom are perfectly sufficient to run cloud apps. 3. • Cloud collaboration and virtual meeting tools allows some people to work from home The Next Generation Cloud Cloud computing will be driven not only by a desire and necessity to do existing things in more effective ways, but by a demand to do entirely new things..
- 13. Security Concerns To use Cloud Computing Services “Safe Web Access” is necessary. In includes: 1. •Setting a strong password 2. •Ensuring antivirus, antispyware and firewall software are installed 3. •Ensuring that your OS & web browser(s) are always updated with the latest security patches. 4. •Not to open suspicious e-mails that may contain malware. More information on appropriate online security measures can be found from GetSafeOnline.org