SYSTEM CALL


Meaning of SYSTEM CALL in English

< 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 .

(1995-03-01)

FOLDOC computer English dictionary.      Английский словарь по компьютерам FOLDOC.