摘要：Cloud computing is a progressive innovation that has achieved new extravagances in the field of Information Technology. It gives a wellspring of information and application programming stockpiling as colossal server farms called 'mists', which can be gotten to with the assistance of a system association. These mists boost the capacities of undertakings with no additional set-up, faculty or permitting costs. Mists are for the most part sent utilizing Public, Private or Hybrid models relying on the necessities of the client. In this paper, we have explored the distributed computing engineering, concentrating on the elements of the Public, Private and Hybrid cloud models. There is a dire need to examine the performance of a cloud environment on several metrics and enhance its usability and capability. This paper aims at highlighting important contributions of various researchers in domains like computational power, performance provisioning, Load balancing and SLAs.
