The tech giant IBM also points to the great scalability of cloud hosting. As the technology progresses, servers become more efficient, using less energy to handle the same number of tasks. Many companies still use old and inefficient servers. They often sit idle, use energy, are technologically less advanced and have weak cooling systems. Instead of keeping the same dedicated servers or upgrading them, many companies would strongly benefit from moving to cloud hosting.
Cloud hosting is an alternative to hosting websites on single servers (either dedicated or shared servers) and can be considered as an extension of the concept of clustered hosting where websites are hosted on multiple servers. With cloud hosting, however, the network of servers that are used is vast and often pulled from different data centres in different locations.