IBM purchased four main types of goods for its operations: 1. Capital equipment - Large, physically large items that usually require approval from top management. 2. Raw materials - Needed continuously for manufacturing. 3. Original equipment parts (OEP) - Standardized components of finished products that are purchased in high volumes and pricing is influenced by quality, delivery, and packaging. 4. Maintenance, repair, and operating (MRO) items - Usually purchased in low volumes for urgent needs and the focus is on satisfying the requestor rather than pricing. Small value purchases can be delegated to users.