Cloud Computing, a term used to describe vast resources and services available to users
for on-demand access. Service provider term is used for the delivering party and
subscribers are the users and the concept being followed is "pay-as-you-go". It can
manage a variety of works by physical/virtual machines. It can highly check resource
usage, re-balance hardware/ software failure.
Service Models: There are service models such as :
(a) Software -as-a-Service(SaaS) is accessed by people using a thin client, it is normally termed as on-demand software provided on basis of subscription.
(b)Platform-as-a-Service(PaaS)-Collection of an integrated network, hardware, software, and internet infrastructure called platform. Platform as a service uses internet for communication & transport provides hardware, software, and network services to clients. Complexity is hidden in platform, and many information related to infrastructure is not shown to users. Here simple graphical interface is used.
(c)Infrastructure-as-a-Service(IaaS)- Infrastructure is the physical framework upon which digital network operate. This includes data centers, company network and database management.
(d)Hardware-as-a-Service (HaaS): Hardware is being provided on the subscription to users on demand. It is beneficial to all because there is no necessity in putting money in building up areas for centers used by organisations for processing vast data.
Deployment models
(a)Public Cloud: With the service given by one service provider, users can access resources and can also share it. Also, there is a threat to security and quality in public clouds.
(b)Private Cloud: In such clouds, services are solely for a single organisation, privately owned and managed. Payment needs to be given, there is no subscription. There is much security and of data in clouds. It is costly as compared to public cloud.
(c)Hybrid Clouds: Composition of two or more clouds having mix features of private and public clouds is known as Hybrid Clouds. The application runs in private and bursts to the public when computing capacity increases.
Service Models: There are service models such as :
(a) Software -as-a-Service(SaaS) is accessed by people using a thin client, it is normally termed as on-demand software provided on basis of subscription.
(b)Platform-as-a-Service(PaaS)-Collection of an integrated network, hardware, software, and internet infrastructure called platform. Platform as a service uses internet for communication & transport provides hardware, software, and network services to clients. Complexity is hidden in platform, and many information related to infrastructure is not shown to users. Here simple graphical interface is used.
(c)Infrastructure-as-a-Service(IaaS)- Infrastructure is the physical framework upon which digital network operate. This includes data centers, company network and database management.
(d)Hardware-as-a-Service (HaaS): Hardware is being provided on the subscription to users on demand. It is beneficial to all because there is no necessity in putting money in building up areas for centers used by organisations for processing vast data.
Deployment models
(a)Public Cloud: With the service given by one service provider, users can access resources and can also share it. Also, there is a threat to security and quality in public clouds.
(b)Private Cloud: In such clouds, services are solely for a single organisation, privately owned and managed. Payment needs to be given, there is no subscription. There is much security and of data in clouds. It is costly as compared to public cloud.
(c)Hybrid Clouds: Composition of two or more clouds having mix features of private and public clouds is known as Hybrid Clouds. The application runs in private and bursts to the public when computing capacity increases.
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