Interrupts and System Calls

This lecture covers the concepts of interrupts and system calls in operating systems. It starts with an overview of the power-on process, OS design, and isolation mechanisms. The lecture then delves into the types of interrupts, including asynchronous events and exceptions. It explains how interrupts are handled by the CPU, the role of the Interrupt Descriptor Table, and the process of switching between user and kernel modes. The lecture also discusses the setup of interrupt handling, the importance of the Task State Segment, and the handling of system calls as a form of interrupts.