Master the basics of Operating Systems, system calls, processes, CPU scheduling from scratch.
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What is an operating system (OS)?
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Modern OS functionalities.
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Layered design of computing systems.
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OS user interface.
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What is Protection in OS?
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What are kernel and user modes? Why are they needed?
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What are system calls? Why are they needed?
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What are traps?
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What is an application programming interface (API)?
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How APIs invoke system calls?
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How are system calls implemented?
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How are parameters passed to system calls?
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Life cycle of program creation
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Memory footprint of a program.
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What is a process?
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What is multiprogramming and multitasking?
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CPU Scheduler and process scheduling.
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What are the various states that a process goes through?
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What is a process control block (PCB)?
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When do processes relinquish CPU?
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What is a context switch?
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CPU scheduling basics and performance metrics.
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What are CPU-bound and IO-bound processes?
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When would CPU scheduler run?
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What is turnaround time and waiting time?
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FCFS scheduling.
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Shortest job first (SJF) scheduling.
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Nonpreemptive priority scheduling.
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What is starvation?
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Shortest remaining time first (SRTF) scheduling.
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Preemptive priority scheduling.
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Round robin (RR) scheduling.
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Combining scheduling algorithms.
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Linux CPU scheduling algorithm.
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Programs with multiple processes.
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Creating multiple processes in Linux.
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Fork system call with illustrative examples.
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Interprocess communication (IPC).
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Shared memory for IPC.
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Message passing for IPC.
