What is cloud computing?
Cloud computing has changed the way we use technology. From streaming movies to running global businesses from home, it is part of our day-to-day lives.
In this article, we’ll explore cloud computing, different types of cloud setups, common services, key benefits and where cloud computing is used today.
What is cloud computing in simple terms?
Cloud computing is a way of using digital services and software over the internet without needing to own or use physical hardware.
Instead of saving files or running programs on your computer, you access them online through the cloud. This means you can access your data and tools whenever you need them with internet access.
It’s like using electricity – you don’t need your own power plant, just a connection to the grid. Cloud computing works the same way by providing access to resources on demand.
Types of cloud deployments?
Cloud computing uses different setups, depending on what a business needs. These are known as deployment models.
Public cloud
A public cloud is run by a third-party provider, like Amazon Web Services or Google Cloud. You share the same infrastructure with other customers, but your data stays private.
It’s great for businesses that want a flexible and affordable solution. You can grow or shrink resources as needed, you only pay for what you use and the provider handles any cloud updates and repairs.
Private cloud
A private cloud is used by a single business or organisation. It can be hosted on-site or by a provider, but the infrastructure is dedicated only to that business. The system can be tailored to meet organisational rules and policies and is ideal for managing sensitive data.
Private clouds are often used by banks, healthcare providers or government agencies with tighter security needs to safely manage sensitive data.
Hybrid cloud
A hybrid cloud combines public and private clouds. It allows businesses to move data and applications between the two, depending on what works best for their needs. For example, a company might use the public cloud for everyday tasks like running a website or storing general files, while keeping sensitive information (like financial records) on a private cloud with tighter security.
Businesses can choose where to run their services based on cost, performance or security needs. It is also helpful for companies that want to gradually move their operations to the cloud without replacing all their systems at once.Hybrid cloud is often used in industries like healthcare, finance and government, where rules around data protection are strict but flexibility is still needed.
Types of cloud computing services
There are also different ways to use the cloud, depending on the service being offered. These are called service models.
Software as a service (SaaS)
SaaS is software you use online, without installing anything. Think of Gmail, Microsoft 365 or Canva. There’s no need to install hardware or software and you can easily access these services through a web browser. The best thing about this is that it’s always up to date, as it usually auto-saves.
Platform as a service (PaaS)
PaaS provides a platform for developers to build and launch apps. It includes tools for coding, testing and deployment. This is ideal for app developers as there’s no need to manage servers, speeding up the software development process.
Infrastructure as a service (IaaS)
IaaS offers basic computing resources on demand, like servers, storage and networks. Businesses use it to build their own systems, which gives them total control over their IT infrastructure. They only pay for what they use and it is highly flexible and scalable.
Function as a service (FaaS)
FaaS is also known as serverless computing. It lets you run small pieces of code in response to events, without worrying about managing servers. It’s commonly used in apps that respond to real-time triggers like user activity or data changes. It’s great for event-driven apps and encourages fast and flexible development. It only runs when needed, saving money for the business.
What are the benefits of cloud computing?
Cloud computing has many benefits that make it a great option for both businesses and individuals. It’s flexible and easy to scale – you can quickly increase or decrease how much computer power or storage you’re using, depending on what you need. For example, a business might use more resources during busy periods and scale back during quiet times, without buying new equipment.
You don’t need to buy or maintain your own servers, so you can save money on hardware, electricity and IT support. Most cloud services charge only for what you use, which helps manage costs.
Cloud computing makes it easier for people to work together, no matter where they are. Teams can access the same files, tools and systems from different locations, which is helpful for remote work or international teams.
Cloud providers also invest in strong security. They use advanced systems to protect data and follow rules to keep information safe. This means businesses can rely on them to help keep their information secure.
Developers can build and launch apps quickly, test updates and bring products to customers faster, without waiting for hardware to be set up.
What are some use cases of cloud computing?
Cloud computing is used in many ways across different industries. One common use is for business data and analysis. Instead of keeping apps on personal computers or local servers, businesses can run them in the cloud so they’re always available and can handle lots of users and information.
Another important use is for backup and disaster recovery. Businesses can save copies of their data in the cloud so they don’t lose anything if there’s a system failure or emergency. This helps them stay up and running with less downtime.
Ultimately, cloud tools are great for collaboration and productivity. Services like Microsoft Teams and Google Workspace help people meet online and work on projects together from anywhere.
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