Definition (according to the U.S.governments National Institute ofStandards and Technology):a model forenabling ubiquitous, convenient, on-demand network access to a sharedpool of configurable computingresources(e.g., networks, servers, storage, applications, and services) that can be rapidlyprovisioned and released with minimalmanagement effort or service provider
In other words: Cloud computing is a term thatis used for anything that involvesdelivering hosted services over theInternet.
Three Types of Cloud ComputingInfrastructure as a Service (IaaS) – users rent the use of servers. They can beprovided by more than one cloud provider.Platform as a Service (PaaS) – users rent the use of not only the servers, but alsothe system software needed to use themSoftware as a Service (SaaS) – the users also rent application software anddatabases.
Applications on the Cloud can beaccessed by: Cell Phones Tablets Laptops Servers Desktops
A cloud can be eitherpublic, private, community or hybrid. . Public Cloud – available to the general public Cost: free or pay as you use itPrivate Cloud – is only available to single organizations Cost: covered by private usersCommunity cloud – shared with several organizations Cost: less that private cloud, because it’s spread out over more users.Hybrid cloud – two or clouds together that keep their ‘Unique properties.
Advantages: it is efficient and canLower costs and save timeDisadvantages: there is a majorconcern about security risks withcloud computing
How can cloud computing be used in education?Virtual classrooms that can be accessed from home – this canbenefit schools that have overcrowded classrooms or smallschools that don’t have the staff to offer certain classes.Assignments – they can be done cooperatively with other studentsOn the cloud and homework can be done from anywhere.College – enable collaboration between different colleges.