Cloud computing delivers computing resources and services over the Internet. It allows users to access applications from anywhere using a web browser. There are three main types of cloud services: Infrastructure as a Service (IaaS) which provides basic storage and networking capabilities; Platform as a Service (PaaS) which provides programming languages and services for developing applications; and Software as a Service (SaaS) which provides ready-to-use software applications to end users. Cloud computing provides advantages for both consumers and enterprises by reducing costs and improving productivity, reliability and flexibility compared to traditional computing models.

1. Cloud Computing
Maarten Pijnenborg & Maarten Van Goubergen

2. Table of Contents
• What is the cloud?
• Why cloud computing?
• Types of Service
• Applications

3. What is the Cloud?

4. Who uses the Cloud?

5. Video

6. Cloud Computing
• Computing and software resources that are
delivered on demand, as a service
• Accessible anywhere
• Stored in the cloud
• Internet connection
• Consumers & enterprises

7. Growth of Cloud
Computing
2010

8. Why Cloud Computing?

9. Advantages: Consumers
• Easy to use
• No updates
• Web applications
• It works
• Browser  compatible with every OS

10. Advantages: Enterprises
• Cheap hardware
• More productivity
• Better reliability
• Pay for what you need
• No additional expenses
•Fixing staff
•Upgrade the software
•Licensing issues

11. Usage
10%
23%
24%
18%
25%
Finance and ERP applications
Data Storage
Communication and collaboration
Sales and marketing
Backup and disaster recovery
Study in 2010

12. Service Models

13. Service Models
• Infrastructure as a service (laaS)
• Platform as a service (Paas)
• Software as a service (SaaS)

14. IaaS
• Equipment used to support operations
• Storage
• Hardware
• Servers
• Virtualization
• Service provider owns the equipment
• Customer = networking architect

15. PaaS
• Customer rents:
• Hardware
• Operating systems
• Network capacity
• Virtualized services and extra services
• Customer = application developers

16. SaaS
• Applications are available to customers
• Dropbox
• Office online
• ...
• Customer = end user

17. Applications

18. Storage Applications
• Stores data on the web
• Account is required (login)
• Data syncing across multiple devices
• Changes how we work
•Group projects
•In companies
• Dropbox, Google Drive, Mega, Copy, ..

19. How does it work?
Start Login Request Response

20. More than Storage
• Create Documents
• Photoshop online
• Email
• Google’s Chromebook
•Minimalistic OS
•Offline & online
• Google Docs, Chrome OS, Pixlr, ..

21. Questions?

22. Resources
http://en.wikipedia.org/wiki/Cloud_computing
http://searchcloudcomputing.techtarget.com/definition/Infrastructure-as-a-Service-
IaaS
http://searchcloudcomputing.techtarget.com/definition/Software-as-a-Service
http://searchcloudcomputing.techtarget.com/definition/Platform-as-a-Service-PaaS
http://blog.equinix.com/2012/06/strategies-to-address-federal-data-center-
consolidation-and-cloud-computing/