SYSTEM CALLS | PRINCIPLES OF OPERATING SYSTEM| SNS INSTITUTIONS
Автор: Dr.Abirami. N
Загружено: 2026-01-18
Просмотров: 1
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System calls are needed because they provide a safe and controlled way for user programs to request services from the operating system. User applications cannot directly access hardware or critical system resources, so system calls act as an interface between user mode and kernel mode. They are required for tasks like process creation, file operations, memory management, and device control**, ensuring security, stability, and proper resource management in the system.
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