A slide deck I prepared for a guest lecture at IIT.

1. The “Cloud”
Nuwan Bandara
http://nuwanbando.com
nuwan@bandara.co

2. What is the “Cloud”
• Everything is shared (or nothing)
• Everything is a service
• Everyone is a consumer
• Logically partitioned

3. What do you get ?
• Saves your money
– No System Admins
– No physical machines
– No IT infrastructure cost
• Saves your time
• Expandable with few clicks
• Shrinkable with ease.

4. Some Jargon
• (*)aaS
• Multitenant
• Geo Partitioning
• Elastic

5. Who are the major player

6. Google App Engine
• Can deploy your own applications
• Can monitory the usage
• Already has some great Apps
– Gmail
– Documents
– Groups
– Etc etc.

8. WSO2 Stratos
• A platform as a service
• Multiple Services
• Can be metered
• Billed on usage
• Can scale up or down

10. Now
• Huge for Small and Medium Businesses
• Data is kept locally
• IaaS is not so reliable
• Thought twice for enterprise usecases

11. Future
• Enterprise adoption
• More Security
• More on Governance

12. Thank You

13. I stole some images from
• http://www.inquisitr.com
• http://www.inquisitr.com
• http://texontelecom.com/img/advantage.jpg
• http://eloquentscience.com
• http://4.bp.blogspot.com
• http://wso2.org
• http://google.com
• http://amazon.com
• http://salesforce.com