system call


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system call

[′sis·təm ‚kȯl]
(computer science)

system call

(operating system, programming)
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.
References in periodicals archive ?
The system call sequence looks chaotic, but there exists some relevant relationships between the system calls.
[1996] described one of the first approaches for analysis of system calls for detection of anomalies.
In the current Ufo implementation the subject process will be trapped on the next intercepted system call and stay trapped until killed.
According to the report, Sentinel follows a previous attempt by the FBI to create an electronic case management system called Virtual Case File, which was abandoned in 2005 after significant management and technical problems with government contractors caused 170 million dollars to be spent on a system that didn't work.
design, implementation and enforcement of joint training courses distance learning system called distance run (siad-operated) for east metropolitan health service
This fluid normally flows out of the eye through a drainage system called the trabecular meshwork.
When a virus infects a cell, the immune system calls in killer T cells to prevent the virus from spreading throughout the body.
A major deciding factor for Jefferson was Newport Tower's technologically advanced fiber optic network, a revolutionary system called SONET OC-12, installed in the building by New Jersey Bell.
Using a system called "supercritical water oxidation," he has built a pilot plant in Pfinztal, Germany, to process 1,500 liters of community wastewater per day.
Suthergreen said this dial out system calls and tells the owner that they have received a delivery and the amount of it, based on the height of the oil.
Working on an experimental system called Face-Rec, Moghaddam is tackling the problem that arises when someone randomly walks up to the video eye of a computer identification system how to find that person's face among the visual clutter.