In the IT industry, we are now in the era of Cloud Computing Technology. Cloud computing, which is based on the Internet, has the most powerful computation architecture. It is made up of a collection of connected and integrated hardware, software, and internet infrastructure. It has a number of features atop grid computing and other types of computing. In this work, I provide a summary of cloud computing evaluations based on a review of more than 30 cloud computing articles. The outcome of this study represents the state of the IT industry before and after cloud computing. Cloud computing is defined as the provision of resources such as network, storage, and servers on demand or on a pay-per-use basis over the internet. Although cloud computing is assisting the Information Technology business, there is still a need for more study and development in this area. In this work, we have contributed an advanced overview focused on the cloud computing idea and the most advanced research issues.