Cloud computing comes into focus only when you think about
what IT always needs: a way to increase capacity or add capabilities on the fly
without investing in new infrastructure, training new personnel, or licensing
new software. Cloud computing encompasses any subscription-based or pay-per-use
service that, in real time over the Internet, extends IT's existing capabilities.
Cloud computing is at an early stage, with a motley crew of
providers large and small delivering a slew of cloud-based services, from
full-blown applications to storage services to spam filtering. Yes,
utility-style infrastructure providers are part of the mix, but so are SaaS
(software as a service) providers such as Salesforce.com. Today,
for the most part, IT must plug into cloud-based services individually, but
cloud computing aggregators and integrators are already emerging.
umesh ghale(214606)
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