The most discernible model of cloud computing is the public cloud model. One of the main benefits that come with public cloud services is the ease of scalability and pay as you go model. For small and medium-sized enterprise in general scalability is very crucial. The resources are offered ‘on demand’ so any change in activity level can be handled very easily. Thus, brings with it the cost-effectiveness.
Unlike dedicated infrastructure, public clouds can save expensive costs for an enterprise or company of having to purchase, monitor and maintain on-premises hardware and application infrastructure.