What do you understand by protection and securities in computer

Production and security

if a computer system has multiple user and allow the concurrent Exhibition of multiple process the Maxus to data must be regulated for that purpose mechanism insured that files memories segments CPU and other resource on the operated on only those processes have gained proper authorised from the operating system..

. protection

then is any mechanism of controlling the axis of process of your user to the resources Defined by computer system is mechanism was provide means to specify the my control to be imposed and two enforce the control between components subsystem early detection of interface errors and often prevention of a healthy subsystem...

security

security to define a system for external and internal attack such attack speed across a hug range and include various and homes Daniel of service attack which use all of system resort and so give legitment user about system priviation of some of the these attack traffic identify service consideration and operating system software...

group identifies

a user can be in one or more group depending on operating system design decision the users group ids are also include in every associated process at third..