ITM 301 Lecture Notes - Network Operating System, Virtual Private Network, Cloud Computing

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 301
• Professor: Farid Shirazi

Document Summary

Cloud computing is a convenient, on demand network access to a showed pool of resources(network, storage, computer application) by providing a high level of abstraction called virtualization. A cloud system provides the following service models: saas (software as a service, paas (platform as a service)(server application, development network operating system) Iaas (infrastructure as a service) haas (hardware as a service) Types of clouds (deployment models: private cloud: owned by a single organization. Public cloud: main different between hybrid and community, is that community has a general provider, cloud vendors, virtualmachineware (initialed a real world implementation, microsoft, xen(citrix, amazon. com, vkm. Each cloud system reads a layer of managing resources and security. Hypervisor is the management layer of cloud. Hypervisor provides a gui environment for managing nic and vnic: managing hardware (memory, hard disc (storage), network, (virtual private network, user and access permission, e. g windows 2008hypervisor.