So, what is the cloud exactly?
The first thing you should understand about the cloud is that it is not a single physical device, unlike the kind of computer desktop and server systems perhaps that you are used to. Instead, the cloud is a network of servers, and each server has a different function, depending on what kind of service you need.
What are the benefits of the cloud?

The business decision to “move to the cloud” is often cost motivated. Most companies used to have to buy their own hardware equipment, the value of which goes down over time. With the cloud though, now companies only have to pay for what they use.
Working on the cloud allows your company to be nimble, efficient and cost-effective. If your company quickly needs access to more resources, it can scale quickly in the cloud. Conversely, if it needs to downscale or reduce resources, it can do so just as easily. In this way, your business could save thousands of pounds over the years.
But what about security
The cloud is great for storing non-sensitive information, but what about personal or confidential information?
All of the major cloud providers are addressing these concerns with improved security, disaster recovery options and by ensuring that your data is stored geographically in the area you need it to be. For many businesses this now means that cloud stored data is more securely protected than it could be by the business itself – typically with higher levels of encryption, better user authentication and more frequent backups.