What is Cloud Computing

Remember the time, when we used to carry those important documents and files in external storage devices like USB-drive or hard drives and always was afraid of losing them in the back of our mind?

Or every time you want to watch a movie on a Friday night, you need to download the movie by searching it online for hours or need to borrow it from your friend or in worst case scenario buy the CD ($$$) from the store.

Not a great time to remember, right? and now for the documents, just upload them on Google Drive, Dropbox, One Drive, or iCloud and they can be accessed from anywhere. And after the arrival of Netflix, you just need to make popcorn to enjoy your favourite movie on Friday night. These innovations have made our life so easy, but have you ever thought, how it’s possible? how we are able to access the data just over the internet without storing them on our device? The answer is Cloud Computing.

Cloud computing is the technology that allows users to store and access the data to and from remote locations which are data centres in most cases where you just pay for what you use and you do not need to worry about provisioning or managing them.

According to one of the biggest cloud providers Amazon, Cloud computing is the on-demand delivery of IT resources over the Internet with pay-as-you-go pricing. Instead of buying, owning, and maintaining physical data centres and servers, you can access technology services, such as computing power, storage, and databases, on an as-needed basis from a cloud provider like Amazon Web Services (AWS).

Currently, any service out there allowing users to access their data without storing them physically on their device is using cloud computing. (i.e., Netflix, amazon prime, iCloud, Spotify, YouTube, Google photos, PlayStation, Xbox, etc.)

Amazon Web Services (AWS), Google, and Microsoft have the highest market share in the cloud industry following by companies like IBM, Alibaba, Salesforce, and Oracle.

Type of Clouds

Public Cloud

Public clouds are the most pervasive and well-known cloud computing model. All the resources needed to run the infrastructure – servers, storage, networking components, and supporting software – are owned and managed by the third-party provider and accessed by your users over the Internet via a web browser. Examples of public clouds are Amazon Web Services, Microsoft Azure, and Google Cloud Platform.

Private Cloud

A private cloud is a computing infrastructure devoted to use by a single organization. It can be housed at your own data center facility or at that of a third-party service provider. The defining characteristic is that the IT resources are run and maintained on a private network for your use alone.

Unlike public clouds, a private cloud is not shared with anyone else. This makes customization and regulatory compliance easier to manage, which is why private clouds are often utilized by financial institutions, government agencies, and heavily regulated industries that need to exercise a high degree of control over their workloads

Hybrid Cloud

A hybrid cloud is basically a combination of both private and public clouds where your resources are shared between both. Confidential operations like financial reporting can be run on a private cloud. High-volume, less sensitive workloads like web-based email – or even temporary workloads such as development and test – can run on a public cloud. A hybrid cloud strategy enables the organization to meet its technical and business objectives more cost-efficiently and effectively than it could with either a public or private cloud alone.

Which one is best for me?

There is no right or wrong choice here and it totally depends on your requirement and the nature of the data. In the private cloud, you get more security and more control over the operations but at the same time the cost is high, and you need resources to maintain the infrastructure. In the public cloud, you don’t get a hold of the devices, but the cost is low, and you pay for what you use. At the same time, you can manage everything with the help of a small team, and no need to worry about maintaining the infrastructure under the hood.

Hybrid cloud optimizes the overall cloud investment while leveraging the advantages of both public and private cloud models.

Fun fact:

Netflix has most of its infrastructure on the cloud and Netflix AWS cost at $9.6 million per month in 2019


Netflix revealed it would spend over $1 billion on “streaming services and cloud computing costs” through 2023. That would average Netflix’s AWS cloud services costs at over $27.78 million per month.

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