(n) :
(computing) A function provided by an operating system to allow userspace programs access to privileged features, such as accessing the system's hardware.
(n) :
(computing) A particular invocation of an operating-system-provided system-call function.
(n) :
(computing) A function provided by an operating system to allow userspace programs access to privileged features, such as accessing the system's hardware.
(n) :
(computing) A particular invocation of an operating-system-provided system-call function.