Batch processing sysytem

A batch processing system is one where data are collected together in a batch before processing starts.

	The method of data entry for early computers was using punched cards, which were handled in batches, and hence the term batch processing.
	Each piece of work for a batch processing system is called a job.
	Batch processing is most suitable for tasks where a large amount of data has to be processed on a regular basis.
	Examples of batch processing systems include payroll systems and examination report card systems.

Advantages of a batch processing system include

	Once the data are submitted for processing, the computer may be left running without human interaction.
	The computer is only used for a certain period of time for the batch job.
	Jobs can be scheduled for a time when the computer is not busy.

Disadvantages of a batch processing system include

	There is always a delay before work is processed and returned.
	Batch processing usually involves an expensive computer and a large number of trained staff.