Understanding the Cloud

Aug 15, 2023 | Explainers

« Explainers | Understanding the Cloud

2 Minutes Read

If you’ve ever wondered what people mean when they talk about storing data or running applications “in the cloud,” then this explainer will help.

What is “The Cloud”?

At its most basic, “the cloud” refers to a system of servers that store data and run applications on the internet, rather than on a local computer or on-premises server. When you use cloud services, you’re essentially renting computing resources from companies that own vast arrays of servers, housed in data centres around the world.

Where is My Data Exactly?

This is a common question and the answer might surprise you. Your data isn’t in some nebulous form up in the sky (despite the cloud name). Instead, it’s stored on physical servers located in secure facilities. The beauty of the cloud is that it abstracts away the complexities of these physical locations, allowing you to access your data or use services without needing to know where those servers are or how they work.

Types of Cloud Services

Here are the most common forms of cloud configurations:

  • IaaS (Infrastructure as a Service): This is like renting a virtual computer. Companies offer virtual machines and other resources on demand. Examples include Amazon EC2 and Google Compute Engine.
  • PaaS (Platform as a Service): Here, you get tools and services designed to make coding and deploying applications easy. Google App Engine and Microsoft Azure are good examples.
  • SaaS (Software as a Service): This is cloud-based software you use directly without needing to install anything on your device. Think Google Docs or Dropbox.

Why Use the Cloud?

  • Flexibility & Scalability: Need more resources? The cloud can adjust to your needs.
  • Cost-Efficiency: Instead of buying and maintaining expensive hardware, you can rent what you need and often only pay for what you use.
  • Collaboration: Work on projects with team members from anywhere in the world.
  • Automatic Updates: Cloud service providers handle maintenance and updates, so you don’t have to.
  • Disaster Recovery: Most cloud providers back up data in multiple locations, ensuring data security and availability even if one data centre encounters issues.
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Concerns About the Cloud:

  • Security: Storing sensitive data off-site can raise security concerns. It’s crucial to choose providers with robust security measures and to be aware of best practices.
  • Downtime: Even the best cloud service providers face occasional outages.
  • Data Sovereignty: Your data may be stored in a different country, subject to its laws.

Summary

The “cloud” might have started as a buzzword, but it’s now an integral part of modern technology. As we continue to produce vast amounts of data and seek efficient ways to process and store it, the cloud’s role will only grow more critical. Whether you’re a business looking to scale or an individual wanting to access your files from any device, the cloud offers a versatile and powerful solution.

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