Information technology (IT) plays a vital role in modern businesses by enabling key functions like communication, inventory management, data management, management information systems, and customer relationship management. IT allows efficient communication between employees, suppliers, and customers via tools like email, live chat, video conferencing. Inventory management systems track stock levels and reorder quantities. Companies can store large amounts of data cost-effectively and employees have immediate access to needed documents. Management information systems track sales, expenses, and productivity for analysis and quick reaction. Customer relationship management systems capture all customer interactions to provide better experiences and relationships.