What is cloud computing?The gadget spec URL could not be found
Cloud computing
includes the delivery of software, infrastructure, and storage over the Internet
(either as separate components or a complete platform) based on user demand.
You can think of it as a coherent, large-scale, publicly accessible
collection of compute, storage, and networking resources, that are available
for use in exchange for payment based on actual resources consumed. Data
processing infrastructure – servers, storage, and bandwidth – can be procured
from the cloud, consumed as needed, and then relinquished back to the cloud,
all in a matter of minutes.
There are basically three
layers to cloud computing. Companies use them differently based on what they
offer. Cloud computing is often provided "as a service" over the
Internet, typically in the form of infrastructure as a service (IaaS), platform
as a service (PaaS), or software as a service (SaaS).
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Characteristics of cloud computing |
- Elasticity: The resources are consumed as per the requirement and ceded back to the cloud after usage.
- Multi-tenant: It enables sharing of resources and costs across a large number of users, improving efficiency and utilization.
- On demand: The resources are available on-demand, and its usage is metered.
- Ubiquitous access: The resources can be accessed anywhere and anytime, provided access to the internet is available.
- Usage metered: The resource usage is measured and metered per client and application on a daily, weekly, monthly and yearly basis.
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Benefits of cloud computing |
- Predictable capital expenditure and
minimal operational expenditure
- Efficient utilization of
resources
- Scale as you grow, Pay as you go
model
- Flexibility, mobility and anywhere
IT
- Reduced total cost of ownership
- Shorter time to market
- Business focused IT
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