What is cloud computing? and kinds of cloud computing

The cloud is included a lot of remote servers that hosted about the all over the internet. It is the delivery of on-demand computing services. Using cloud computing, users are able to access software and applications no matter where they want, even though it is being hosted by some other party. One benefit of using cloud-computing services is firms can avoid the upfront cost and complexity of owning tweaking their own IT infrastructure, and instead simply pay for the things they use after they utilize it. With cloud computing, you don’t desire to make large upfront investments in hardware and spend a lot of time for the work of managing that hardware.
The key benefits of cloud-computing are :
1. Trade capital expense for variable expense
2. Stop guessing capacity
3. Go global in minutes
4. Benefit from massive economies of scale
5. Increase speed and agility
6. Stop purchasing running and looking after data centers

The key types of cloud-computing or you can say cloud computing services :

Software like a service (SaaS) –
Obtaining owned and operated by others which connect with users’ computers over the internet and, usually, a web browser.
Platform being a service (PaaS) – is really a complete development and deployment environment in the cloud, with resources which allow you to deliver from simple cloud-based apps to stylish, cloud-enabled enterprise applications.
Infrastructure being a service (IaaS) – Provides companies with computing resources including servers, networking, storage, information center space with a pay-per-use basis.

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