The correct answer is A. On-line processing.
On-line processing is a type of data processing in which data is entered into the computer system and processed immediately. This is in contrast to batch processing, in which data is collected and processed at regular intervals.
On-line processing is often used in real-time applications, such as airline reservation systems and stock trading systems. It is also used in many business applications, such as order processing and inventory management.
On-line processing has several advantages over batch processing. First, it is more efficient, because data is processed as soon as it is entered. Second, it is more accurate, because data is not lost or corrupted while it is being stored. Third, it is more flexible, because data can be accessed and processed from anywhere in the world.
However, on-line processing also has some disadvantages. First, it can be more expensive, because it requires more hardware and software. Second, it can be more complex, because it requires more programming and maintenance. Third, it can be more vulnerable to security threats, because data is stored and processed in real time.
Overall, on-line processing is a powerful tool that can be used to improve the efficiency and accuracy of data processing. However, it is important to weigh the costs and benefits of on-line processing before implementing it in a particular application.
Here is a brief explanation of each option:
- A. On-line processing: Data is entered into the computer system and processed immediately.
- B. Remote-terminal processing: Data is entered into a computer system at a remote location and processed at a central location.
- C. Batch mode processing: Data is collected and processed at regular intervals.
- D. Intelligent terminal Processing: A type of terminal that can perform some processing tasks on its own.
- E. None of the above: None of the above options are correct.