system call

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system call [′sis·təm ‚kȯl]

(computer science)

supervisor call

(operating system, programming)

system call - The mechanism used by an application program to request service from the operating system. System calls often use a special machine code instruction which causes the processor to change mode (e.g. to "supervisor mode" or "protected mode"). This allows the OS to perform restricted actions such as accessing hardware devices or the memory management unit.

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How can a church-run school system call itself Christian when it expects sacrifices from its staff yet treats its employees with disdain and without any sense of caring?

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A, so applications can transfer data directly to the NIC, avoiding the overhead of data copies and system call context switches while still enjoying the security benefits of traditional kernel-based networking implementations.

DAFS: Enabling Data Center Applications by Lent, Arthur / Computer Technology Review

The agents self-learn normal application behavior over a short period of time and automatically detect anomalous code paths thereby blocking system call execution.

Sana Security's Primary Response Application Security Software First ... by Business Wire

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