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a) The cost of the traditional data center is higher due to heating and hardware/software issues
b) Cloud gets scaled when the demand increases. Majority of the expenses are spent on the maintenance of the data centers, while that is not the case with cloud computing
The main difference between a Cloud and Data Center is that a Cloud is an Off Premise form of computing that stores data on Internet, and Data Center refers to On Premise Hardware that stores data within an Organization's local network.
In simple words -
A datacenter is bunch of servers, storage, backup connected to network; running applications.
A cloud is ‘pay what you use’ pie from the datacenter mentioned above.
Cloud computing expert Chris Moyer explains the difference between a private cloud and the standard data center.
The main difference between a cloud and a data center is that a cloud is an off-premise form of computing that stores data on the Internet, whereas a data center refers to on-premise hardware that stores data within an organization's local network. While cloud services are outsourced to third-party cloud providers who perform all updates and ongoing maintenance, data centers are typically run by an in-house IT department.
On premise data center refers to a physical private data center server, and private cloud is cloud management software, the logical IT model, for which data lies in an infrastructure.
Capacity
The storage capacity of data centers is limited. There is always a certain amount of data that you will have to subscribe to for upload/download. However, clouds offer unlimited data storage capacity to users.
Access
Access to the data that is stored by the data center is not direct and easy. If you want to access your own data, you will have to undergo a process of verification first and this can be time-consuming. On the other hand, cloud computing is direct and accessible by the user at any hour of the day via any device.
Management
The data at data centers are managed by IT professional teams. Hence, there is no direct involvement of the user whereas on clouds, there is no third party involved and the user is responsible himself to manage his data online.
Control
At data centers, you will be given administrative rights to have control over your data but it will always be supervised by experts. Cloud computing will give you control over the data but the third-party authorizer will have control over your data with or without your prior knowledge as well. Also, clouds are synced with public forums which can give unnecessary access to a third party.
The difference between the cloud and data center is that a data center mentions to on-premise hardware to off-premise computing. When the Cloud stores your data in the public Cloud then a data center stores your data on your own hardware.
Cloud is off-premise that helps clients' businesses to organize, store, and operate the data efficiently. Data Center is an on-premise physical resource that helps businesses to store, organize, and operate data efficiently.
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