Cloud computing

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What is Cloud Computing?

Cloud computing is on-demand access, via the internet, to computing resources—applications, servers (physical servers and virtual servers), data storage, development tools, networking capabilities, and more—hosted at a remote data center managed by a cloud services provider (or CSP). The CSP makes these resources available for a monthly subscription fee or bills them according to usage.

 In simple terms cloud computing is virtual machine for a user(customers) but for an cloud provider they will have a large amount of  space with data center.

What is Data Center?

At its simplest, a data center is a physical facility that organizations use to house their critical applications and data. A data center's design is based on a network of computing and storage resources that enable the delivery of shared applications and data. The key components of a data center design include routers, switches, firewalls, storage systems, servers, and application-delivery controllers.

What are the core components of a data center?

Data center design includes routers, switches, firewalls, storage systems, servers, and application delivery controllers. Because these components store and manage business-critical data and applications, data center security is critical in data center design. Together, they provide:

Network infrastructure: This connects servers (physical and virtualized), data center services, storage, and external connectivity to end-user locations.

Storage infrastructure: Data is the fuel of the modern data center. Storage systems are used to hold this valuable commodity.

Computing resources: Applications are the engines of a data center. These servers provide the processing, memory, local storage, and network connectivity that drive applications.

Types of data centers

Enterprise data centers:

These are built, owned, and operated by companies and are optimized for their end users. Most often they are housed on the corporate campus.

Managed services data centers:

These data centers are managed by a third party (or a managed services provider) on behalf of a company. The company leases the equipment and infrastructure instead of buying it.

Colocation data centers:

In colocation ("colo") data centers, a company rents space within a data center owned by others and located off company premises. The colocation data center hosts the infrastructure: building, cooling, bandwidth, security, etc., while the company provides and manages the components, including servers, storage, and firewalls.

Top 10 Cloud Service Providers:

1. Amazon Web Services (AWS)
2. Microsoft Azure
3. Google Cloud
4. Alibaba Cloud
5. IBM Cloud
6. Oracle
7. Salesforce
8. SAP
9. Rackspace Cloud
10. VMWare

           

Cloud Computing is the growing technology in IT Industry . Cloud Computing booms for next few years. so learn well.

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