Data protection in computers with virtual disk - involves switching computer off electronically only after data secured on fixed disk

摘要

The method of protecting data in computers involves operating an external storage device using electronic switching off of the computer which also prevents the computer from being manually switched off. After data on a virtual disk is secured on a fixed storage unit, a signal is generated by a program running in the computer and sent to a controller requesting electronic computer switch-off. This signal is not output until the data have been secured. USE/ADVANTAGE - E.g. for use with PCs and UNIX computers with virtual disk in additional to fixed storage devices and external controller. Protects against fixed disk crashes.