Cloud allows companies to avoid upfront infrastructure costs. As well, it enables organizations to focus on their core businesses instead of spending time and money on computer infrastructure. Also cloud allows enterprises to get their applications up and running faster, with improved manageability and less maintenance, and enables Information Technology teams to more rapidly adjust resources to meet fluctuating and unpredictable business demand. Cloud providers typically use a "pay as you go" model. This will lead to unexpectedly high charges if administrators do not adapt to the cloud pricing model.