You may have heard about the Cloud and wondered what it is. The Cloud or Cloud computing generally refers to taking systems which may have traditionally lived off-line or on your premises as systems stored on physical servers and moving them online to a virtual server. An example could be a business that hosts their own email on a server at their own premises. Over the last few years, internet connections have become faster and faster which has lead to businesses moving their servers hosted on their premises to a Cloud computing service such as Amazon Web Services (AWS).
So instead of having a server in your office hosting your email which is susceptible to power cuts or internet outages businesses are increasingly looking to the Cloud to host systems. Instead of having to buy and upgrade hardware periodically, you can rent virtual servers by the minute. Benefits of this are cost as this remains consistent and are easily scaled if you need more storage or computing power.