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Are you looking to conquer the complexities of operating systems? Whether you’re prepping for competitive exams, job interviews, or acing your OS course, Udemy’s ‘Operating System Concepts-1’ is your ultimate guide. This course doesn’t just skim the surface; it dives deep into the fundamental principles that govern how our computers function.
Ever wondered how your operating system shields itself from rogue user programs, or how it keeps different applications from interfering with each other? This course demystifies these critical security and protection mechanisms, including the crucial differences between kernel mode and user mode, and the role of system calls and traps. You’ll learn why programmers opt for APIs over direct system calls and understand the intricate dance of how APIs actually invoke these powerful system calls.
The curriculum meticulously breaks down the entire lifecycle of program creation, from understanding a program’s memory footprint to the very definition of a process. Multiprogramming and multitasking are explained in detail, setting the stage for a comprehensive look at CPU scheduling. You’ll grasp the nuances of process states, the vital information stored in the Process Control Block (PCB), and the essential concept of context switching.
The course excels in its thorough exploration of CPU scheduling algorithms. It covers the basics, performance metrics, and the distinction between CPU-bound and I/O-bound processes. You’ll gain practical insights into algorithms like First-Come, First-Served (FCFS), Shortest Job First (SJF), Priority Scheduling (both preemptive and non-preemptive), and the popular Round Robin (RR) scheduling. The challenges of starvation and techniques for combining algorithms are also addressed, with a special focus on the Linux CPU scheduling algorithm.
Furthermore, ‘Operating System Concepts-1’ tackles the complexities of managing multiple processes and the critical aspect of Inter-Process Communication (IPC). Through illustrative examples, including the ubiquitous fork system call in Linux, you’ll learn how processes are created and how they effectively communicate using shared memory and message passing.
With Udemy’s 30-day money-back guarantee and the availability of wisdom scholarships for those facing financial constraints, this course is an accessible and invaluable resource. If you’re serious about understanding the core of computing, this course is a must-have addition to your learning arsenal.
Enroll Course: https://www.udemy.com/course/operating-systems-concepts-1/