1. 3

2. 4 Time Sharing cloud computing Software as a Service Amazon EC2Microsoft Azure ServicesPlatformGoogle App Engine Outsourcing 3. 5 IDC Cloud Computing 4. 6 (Virtualization Technology) Virtualization Technology 5. 7 x xx Cloud Management Cloud Computing Vendors Amazone 6. 8 AMI Rackspace web application hosting Vmware GoGrid Salesforce.com 7. 9 Google Out- sourcing 8. 10 Operation-System 9. 11 Scalability and Availability Green IT Green IT 10. 12 (HIPAA, SOX etc.) Green Peace 11. 13 hp Facebook TwitteryoutubeMyspace Gartner Grid-computing 12. 14 Trend Micro Secure Cloud -- 13. 15 WebPulse Cloud ReadyManaged Security Service Provider 14. 16 IDC 15. 17 IDC IDC . 16. 18 . CoreMetroEdge IPv4IPv6 GbE Brocade MLX Series . MPLSBrocade NetIron CER 2000 Series. Metro Network Brocade 6910 Ethernet Access Metro Network Brocade ServerIron ADX Ethernet Fabric . 17. 19 IDC IDC Axios Systems 18. 20 - Axios Systems 19. 21 . EMC 20. 22 -VMware. -. -EMC EMC VMware Cisco 21. 23 IBM MicroSoftIBM 22. 24 (Cloud Computing) (Cairo ICT 2011 23. 25 24. 26 The Guardian . . . . . . . . . . . . http://www.aitnews.com/news/14741.html . http://gate.ahram.org.eg/NewsContent