What is Cloud Computing?
Cloud computing is a model of storage of applications and database that is delivered via the internet and accessed on demand. This model eliminates the need to invest in or depend on large scale hardware to store and host online products and services. Cloud hosting allows businesses to access storage, databases, applications, servers, networking on the internet on a pay-as-you-go basis. 
How does Cloud Computing work?
Cloud-based service providers are essentially virtual servers that maintain network connected hardware that can host application services. Instead of keeping the application files on a local drive, businesses can use cloud network to store their data and access it through internet. Since cloud computing facilitates resource sharing through a network (internet), a laptop with an internet connection is all that you need to utilise this technology.
Why is Cloud Computing Convenient?

Cloud computing is gaining popularity and confidence and we can see why. Apart from being cost-effective, the cloud provides agility and elasticity. As an increasing number of organisations and businesses adopt cloud computing, let’s take a look at the key benefits of the cloud:
Cost-Effective: The pay-as-you-go model of cloud computing allows businesses to rent their infrastructure which is extremely beneficial for small scale businesses and startups. Even with larger organisations, this model works wonders as you only need to pay for the services you have availed. Depending on the scheme you opt for, cloud server providers can charge you on an hourly basis. Also, since cloud computing service providers are large scale businesses, renting these services reduce your variable expenses.  
Agility: Cloud takes the load off your IT resources to develop and maintain your infrastructure. Instead, it lets to devote that resource entirely to your products so that it is more enhanced and you can gain credibility in the market. With the cloud, accessing and using a range of technology is fast and simple. Whether it is deploying hundreds of servers simultaneously or using cloud storage, databases, analytics and more – cloud computing is quick and allows room for experimentation. As a result, innovation is frequent and consistent.   
Flexibility: Scale your infrastructure up or down according to your necessity. The biggest advantage of cloud computing is that it allows you to focus on a need-based procurement. You can rely on the cloud to function seamlessly even during your peak hours of action. This eliminates any need for additional investments in infrastructure. 
Scalable Global Presence: With Cloud, you can establish your global presence. Cloud computing service providers have multiple data centers located at various places across the world. You can deploy your application at several locations at the same time, thanks to high-speed fiber connections which reduce latency and enhance user-experience. 
Types of Cloud Computing
Cloud computing can be classified into three types of services:
Platform as a Service (PaaS): PaaS is ideal for businesses which involve building and delivering web-based applications. Users of PaaS can install and host data sets, analytics and development tools without having to buy or manage any of the hardware or software needed for application development. In fact, developing and marketing your application is much easier and faster with PaaS. 
Infrastructure as a Service (IaaS): IaaS allows businesses to access web storage, architecture, servers, and networks so that they can use these facilities on-demand basis without having to buy or invest in it.
Software as a Service (SaaS): SaaS is the most popular of the three categories. This model allows users to own and operate applications that are hosted by the cloud and used by consumers via the internet.  
Cloud Computing is the Way Forward
Cloud computing aids businesses by reducing costs and complexities and optimising resources – but more importantly, it reduces carbon footprint, thus rendering our environment a little greener. Future businesses need to be environmentally conscious and cloud computing is the way to do that. With more than 75% of businesses expected to adopt this model within the next few years, cloud computing is surely the new way to plan infrastructure. 



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