Batch processing

<aside> 👉 Performs many similar tasks or jobs serially without the need for user intervention, so very good for number-crunching/repetitive tasks

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Properties

• Performs a large number of similar tasks or jobs

• Can run without user intervention

• Can run during out-of-office hours

• Works through the jobs sequentially

• Tends to happen during the night when there is little load on the servers

• Often require large amounts of CPU time and need a long time to complete

• If an error occurs, then that error will be reported to a log file and the batch processing continues

• Example: generating phone bills

• Uses a transaction file to record events, then the master file is updated at the end of each period

• Simpler/faster system to operate, as transactions can simply be stored in the order received, with all processing carried out later

• Can be carried out automatically at times when the computer system is not otherwise in use

Real Time Control

• Traffic lights
• Same as RTTP but the data collected is acted on immediately