Answer:

Batch processing means your sales team or other employees would gather information throughout the day or a specified period of time and all that information would be entered into the system all at once. This process works for payment processing and printing shipping labels and packing slips. However, this method also means waiting to do everything at once and relying on the ability of your system to handle it all.

Real-time processing, on the other hand, processes each of the transactions and enters the information into your system immediately. This means your salespeople and other employees must be connected at all times to ensure all information is integrated and synced at the exact time it is entered

Online processing is just like live processing in that case if user input some data by filling input form on any site then it get processed and data fetch from the database online at the same time. The online processing involves database servers, files on hosting and browser to communicate effectively and do fast work to be responsive. As the name suggests it is online so that mean it is live to action. The processing just on time.

In batch systems the data enter at any time may get processed days later. For example data collected about salaries and other transactions about customers get processed later at the date when reports are generated. Similarly inventories and salary distributed is processed later. So this batch processing is schedule based in which processing get time schedule of when to process data