Unix system calls - PowerPoint PPT Presentation

Chapter 5. System Calls

Chapter 5. System Calls. Overview. The kernel provides a set of interfaces By which processes running in user-space can interact with the system Give applications access to hardware and other operating system resources Act as the messengers between applications and the kernel .

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UNIX Process

UNIX Process. Processes Commands that deal with processes UNIX System Call … using system(“…shell command…”) ; fork’n exec System Calls to manipulate your processes UNIX System Calls … accessing the kernel Process ID, Parent Process ID, Process Group ID PID,PPID,GID. The Linux Kernel .

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Chapter 2: Operating-System Structures

Chapter 2: Operating-System Structures. Yang, 2012 Partially based on the OSCE text book. Chapter 2: Operating-System Structures. Operating System Services &amp; User OS Interface System Calls System Programs (System utilities) Operating System Design and Implementation Virtual Machines.

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