Final answer:
Firms that collect a large amount of customer information and purchase history store it in data warehouses. Data warehouses are centralized repositories that facilitate data analysis and decision-making.
Step-by-step explanation:
Firms that collect a large amount of customer information and purchase history store it in large computer files called data warehouses. These warehouses are centralized repositories that house vast amounts of structured and unstructured data. They are designed to facilitate data analysis, reporting, and decision-making.
Data warehouses offer several benefits to organizations. They provide a unified view of data from different sources, allowing businesses to gain insights and make informed decisions. They also support complex queries and analysis, enabling efficient data mining and reporting.
For example, a retail company may use a data warehouse to store customer information, transaction history, inventory data, and sales data. By analyzing this data, the company can identify buying patterns, target specific customer segments, and optimize inventory management.
In conclusion, the correct option is warehoused for the large computer files used by firms to store customer information and purchase history.