Which of the following is an example of real-time processing?

A file used to update several student tuition payments
An executive using tools for forecasting future student enrollment
An immediate change in a student's schedule
Several personnel accessing the registration system

Explanation:

Real-time processing:

In simple, Real-time processing means, as and when the data comes, it will processed and the output will be sent immediately.

Example: ATMs, traffic system on road, etc.

Batch processing:

Rather in Batch processing, more number of inputs or "bulk inputs" will enter the system and there will be time for processing. The output will be sent later.

Option A: the term "several student payment" says that it is batch

Option B: Forecasting future student enrollment: The output can be given later. Hence it is batch processing.

Option C: Immediate change implies that it is real-time processing

Option D: The word "several personnel accessing" implies that it is batch processing.

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