Halting the System

Halting the System

Whilst the system is undergoing a task (such as processing, analysing etc.) the system might have to stop, or halt itself. This can be due to system shutdowns or running other urgent tasks. If such interruptions occur when a system is undergoing another task, the information system can store the data that has already been through that task, so that the information is not lost and the task does not have to start from the very beginning again. There are many devices that can be used for this storage. In a normal PC or notebook the hard disk drive will be used. Memory cards of USB sticks can also be used if suitable.
Some programs can automatically store data for you at regular intervals in case of an interruption, such as a power failure. So that after the interruption the user can retrieve that data they had collected at the last save point.

Note: Storing data at regular intervals during a collection or processing task is a safeguard against an unexpected system failure.