Summary
Full Transcript
Welcome to 'Introduction to Operating Systems' course ! This lecture examines software interrupts and their role in implementing system calls. It differentiates software interrupts from hardware interrupts, explaining how software interrupts are triggered by instructions within a program rather than external devices. The lecture then delves into the mechanism of system calls, illustrating how they use software interrupts to request services from the operating system kernel. It details two methods for passing parameters to system calls: registers and the user mode stack. Finally, it provides an overview of the system call handling process, emphasizing the transition between user mode and kernel mode. NPTEL Courses permit certifications that can be used for Course Credits in Indian Universities as per the UGC and AICTE notifications. To understand various certification options for this course, please visit https://nptel.ac.in/courses/106106144 #SoftwareInterrupts #SystemCalls #KernelMode #UserMode
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