UNIVERSITY OF TARGU MURES
Cloud computing has been touted as a lower-cost alternative to in-house IT infrastructure recently. However, case studies and anecdotal evidence suggest that it is not always cheaper to use cloud computing resources in lieu of in-house infrastructure. Also, several factors influence the cost of sourcing computing resources from the cloud. For example, cloud computing providers offer virtual machine instances of different types. Each type of virtual machine strikes a different trade-off between memory capacity, processing power and cost.