Which of the following systems focuses on processing large volumes of transaction data?

• A. Management Information System
• B. Decision Support System
• C. Transaction Processing System
• D. Executive Information System

Answer: (C)

The choice focusing on processing large volumes of transaction data is indeed the Transaction Processing System (TPS). These systems are specifically designed to handle and manage vast amounts of transaction data efficiently. A TPS collects, stores, modifies, and retrieves daily transactions of an organization, ensuring accuracy and speed in processing. They are critical for operational tasks like billing, order entry, payroll, and reservation systems, where high transaction volumes are common.

In contrast, Management Information Systems (MIS) primarily aggregate and summarize information for management decision-making but do not usually handle raw transaction data at the same volume as a TPS. Decision Support Systems (DSS) are geared towards aiding complex decision-making processes by analyzing data but not for real-time transaction handling. Finally, Executive Information Systems (EIS) provide top executives with easy access to internal and external information relevant to their strategic objectives, focusing more on high-level summaries than on processing transactions.