Data systems refer to a collection of hardware, software and procedures used to store, process, retrieve and distribute data. These systems are designed to manage large volumes of information efficiently and effectively, by using various tools such as databases, data warehouses, data mining techniques, and data visualization methods. Data systems play an important role in helping organizations make informed decisions based on accurate and timely information. They can be used for a variety of purposes including financial management, customer relationship management, supply chain management, human resource management, and many others. Overall, the term "data system" refers to any combination of resources that are used to manage data in an organized manner.