Cloud Computing: Fundamentals & Advantages

What is Cloud Computing?

Cloud computing is a model for the on-demand use of IT resources via a network, typically the internet. It allows computing power, storage space and software to be provided in a flexible and scalable way, without companies or individuals having to operate their own physical servers or data centres. Billing usually follows the “pay-per-use” principle, meaning costs are based on actual usage.

This represents a paradigm shift in IT delivery: instead of relying on local hardware, resources are dynamically accessed through external providers.

What are the Key Characteristics of Cloud Computing?

• Cloud computing is characterised by its ability to dynamically adapt to current demand, ensuring rapid availability of IT resources even when usage fluctuates.
• Provision and use take place via a provider’s infrastructure, such as centron, through defined interfaces – for example, web browsers, APIs or specific protocols – rather than relying solely on local systems.
• Different service models can be distinguished: Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS).
• There are also various deployment models, such as Public Cloud, Private Cloud, Hybrid Cloud and Community Cloud, which can also be combined (e.g. into a Multicloud).

What are the Benefits of Cloud Computing?

The advantages of cloud computing are manifold. Companies benefit from significant cost savings, as investments in their own hardware and maintenance are no longer necessary. Instead of high upfront investments, only usage-based operating costs arise. In addition, the cloud offers a high degree of flexibility: new systems can be deployed within minutes, accelerating innovation. Global availability is another decisive factor – cloud applications can be used worldwide, provided there is an internet connection.

Another benefit is reliability: leading cloud providers operate their services in highly available data centres with comprehensive security and redundancy concepts. This increases resilience compared to many on-premises solutions. Cloud computing also fosters collaboration: data and applications are accessible simultaneously to teams across different locations, enhancing productivity. Finally, the cloud contributes to sustainability: through shared use of data centres and the efficiency of modern hardware, resources are better utilised and energy consumption is reduced.