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Parameter
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Grid Computing
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Cloud Computing
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Definition
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It is a collection of heterogeneous Computers from different locations
to achieve a common goal.
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It is the delivery of computing as a service rather than a product,
where resources, software, and information are provided to Computers and
Other devices as a utility.
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Platform
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It makes use of heterogeneous Computers to run.
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It makes use of Homogeneous computers to run.
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Focused on
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Intensive Calculus
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Standard and intensive cloud.
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Visualization
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Not Much Reliable
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Reliable
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Performance
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High
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Less than Grid
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Research Community
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Grid is distributed and has multiple user communities and is grouped
in virtual organization.
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It has generally one research community and a common group of system
administrators that take care of entire domain.
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Funds
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Grid is generally funded by local, national and international levels.
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Cloud is generally funded by its users only.
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Economy
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It’s not economic to store small files on grid.
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It’s economic to store small files on cloud.
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Interface Sharing
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In Grid Computing Users and resource interfaces are shared.
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In cloud computing only user interfaces are shared while resource
interfaces are kept hidden.
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Trust Model
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Trust model is based on identity delegation, where user can access
and browse resources, which are not highly abstracted or virtualized at different
grid sites.
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In Cloud resources are abstracted and virtualized and this trust
model does not exist since everything is inside the same cloud.
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Security
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In Grid Computing all
resources are shared with other users so the machine’s security should not be
compromised.
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Cloud computing, visualization is
normally done directly
with the support of processors’ visualization methods, so the resources are
accessed in an abstract and more secure way
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User Access
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Grid Computing
Requires multiple user IDs.
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Cloud Computing
Requires only one user ID.
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