Cloud computing is a type of Internet-based computing that provides shared network services to users through virtual servers and resources, instead of dedicated servers and IT infrastructure.
Cloud computing uses computer networks to provide third-party vendors with APIs that allow them to offer their services to end users. Also known as “virtualized software” or “software as a service” (SaaS), cloud computing enables companies to rent applications from third-party resellers rather than installing those programs on their own computer network.
With this type of setup, users can access only the software functions they need when they need them. With so many options available, it can be hard to understand what each one offers. In this article, we’ll explain the different types of cloud computing:
Types of Cloud Computing
At the most basic level, cloud computing is a type of Internet-based computing that uses virtual servers and shared network resources to host and store data, as well as computer programs. This resource pooling allows organizations to reduce capital investment and increase operational efficiency by taking advantage of large data centers with high-end computer systems. Cloud computing is utilized by businesses of all sizes, but it’s especially helpful for organizations with limited IT resources. Being able to outsource data storage, software maintenance, and other time-consuming tasks can free up employees to focus on their core competencies. Cloud computing can be broken down into five types:
Software as a service (SaaS): SaaS is a software application that’s hosted by a cloud service provider and accessed by users via the Internet. SaaS applications are typically hosted by a single vendor in their own data center, with each user connecting to the vendor’s software using an Internet browser.
Infrastructure as a service (IaaS): IaaS is a service that gives users access to virtualized computing resources, such as computer network, server, storage, and other infrastructure that’s hosted inside a cloud data center.
Platform as a service (PaaS): PaaS is a service that provides a computing platform, either through a managed service or an application programming interface, that allows users to build and deploy applications without having to manage the underlying technology infrastructure.
Software as a service (SaaS) - SaaS is a software application that’s hosted by a cloud service provider and accessed by users via the Internet. SaaS applications are typically hosted by a single vendor in their own data center, with each user connecting to the vendor’s software using an Internet browser.
Infrastructure as a service (IaaS) - IaaS is a service that gives users access to virtualized computing resources, such as computer network, server, storage, and other infrastructure that’s hosted inside a cloud data center.
Platform as a service (PaaS)- PaaS is a service that provides a computing platform, either through a managed service or an application programming interface, that allows users to build and deploy applications without having to manage the underlying technology infrastructure.
Cloud computing Architecture
To understand how cloud computing works, it’s helpful to understand the architectures of centralized and distributed computing. The “classic” computing model involves a mainframe computer, which runs applications and stores data.
People connect to that computer via terminals or personal computers, where they can run applications and store data locally. This model of centralized computing is expensive to maintain, especially on a large scale. A distributed computing model, on the other hand, uses networks of smaller computers to run applications and store data.
In these networks, each computer has a specific function and they all work together to handle larger tasks. This type of network enables people to collaborate, share data, and access resources from different computers. Cloud computing is a distributed computing model — but on an immense scale.
Key components of cloud computing architecture:
Infrastructure: This is the hardware, such as servers, storage, and networking equipment, that’s used to deliver cloud computing services and host data.
Software: This includes the operating systems, application programming interfaces, and other software that helps to manage the cloud infrastructure.
Service: This is the functionality that end users access through their devices — such as the ability to store data, run applications, or access the Internet.
Cloud computing resources
Computing resources: Computing resources include processing power, memory, storage, and applications.
Network resources: Network resources include the transmission lines, switches, and other hardware that deliver data to end users.
People resources: These are the employees, contractors, and other individuals who create, manage, and use cloud computing resources.
Cloud computing benefits
Scalability: Cloud computing can be easily scaled up or down through the use of software or hardware. This ability makes it ideal for organizations that experience large fluctuations in demand.
Cost savings: Cloud computing can reduce the total cost of ownership by up to 90% compared to on-premises systems. - Increased collaboration: Cloud computing can improve collaboration and help organizations to work together more effectively.
Ease of use: Cloud computing is easy to use, as it can be accessed from any device with an Internet connection.
Security: Cloud computing providers are responsible for security, so organizations don’t have to deal with complex and costly IT infrastructure.
Conclusion
Cloud computing is a type of Internet-based computing that provides shared network services to users through virtual servers and resources, instead of dedicated servers and IT infrastructure.
Cloud computing uses computer networks to provide third-party vendors with APIs that allow them to offer their services to end users. Cloud computing can help businesses to achieve scalability, cost savings, increased collaboration, ease of use, and improved security.
It’s an ideal model for organizations that experience large fluctuations in demand or need to collaborate with partners and customers.
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