Cloud Computing is the idea or concept of accessing scalable (expandable) technology services using the Internet instead of a personal computer or office server. Pioneers of cloud computing include Salesforce.com, which introduced the idea of ​​delivering applications through a simple website, Amazon with its Amazon Web Service, and Google Docs. Decades ago, most businesses used a centralized computing model that typically includes supercomputers where all software, storage devices, and other items are included. But due to its very high cost, which typically reaches millions of dollars, the demand for cheaper but more powerful microprocessors increased in the 1980s. This, through phases including grid and utility computing, the supplier of application services (ASP) and software as a service (SaaS), ultimately led to the evolution of cloud computing. In the early 1990s, as more people began to move from client-server models to Internet-based computing, the concept called grid computing was introduced. The idea was born to make the power of computers as accessible as an electrical network. Grid computing ultimately allowed different organizations to work together because it is made up of loosely coupled networked computers working together to perform large-scale tasks. It is then supported by the IT utility which allows people to rent IT services such as Internet access. Then, in the late 1990s, application service providers (ASPs) came into play and allowed businesses to outsource their IT needs, such as software and servers, allowing them to save paper. bigger problem in terms of productivity. Many businesses find cloud computing very convenient and efficient in terms of time, money and even energy. Thanks to this, it has become very popular, especially with businesses. But for every transaction, businesses must always be careful. Before making a decision or providing information, many elements must always be taken into consideration. This is when communication between the customer and the supplier plays an important role. Businesses must first ensure that the services offered by cloud providers will actually benefit them. They should also ask vendors about their backup plans in case of issues regarding outages, security and data mobility. Ultimately, it always depends on the businesses as to how they can get the most out of cloud computing..