Final answer:
Departmental Information Systems are specialized tools tailored to support the needs and operations of specific departments like sales, marketing, or finance within an organization.
Step-by-step explanation:
Departmental Information Systems are designed to serve the needs of a specific department, such as sales, marketing, or finance. These systems, often referred to as functional area information systems, are tailor-made to support the unique processes and information requirements of individual departments within an organization. By handling tasks ranging from customer relationship management in a sales department to budgeting and financial planning in a finance department, these systems ensure that every functional area operates efficiently and effectively toward the organization's goals.