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Operating Systems Fundamentals

1OSS 4 chapters 2 ECTS credits Level Beginner


The course doesn't present in details of a particular operating system, but it introduces a general description of computer's management by an operating system. The course describes the system programmer side insisting on the presentation of algorithms and their uses. We will always do the link between the hardware and the software programming, because the computer architecture and operating systems are closely linked.


A computer has one (or more) processor (s), one or more memories and peripheral devises. Each of these components requires careful attention by the system to obtain optimum use. Operating systems are the interfaces between hardware and users. They parallelize the work and manage the concurrent for programs calling the same resources (screen, keyboard, memory ...).


To not have running locking (internal or user programs), the operating system has the management strategies, control and sharing of resources.


The modern computer goes fast, and the user tasks become many and varied. To obtain all power of the machine (PC, console, iPod ...), we require that programs are properly controlled by good systems. As the machines and user's demands evolve, we must, at all times, creating new systems to use the new programs. It's therefore necessary to understand how operate the concurrent and scheduling programs to make your next applications and new systems.


The course follows the course of computer architecture (1CPA) and the algorithm (1ADS). It contains the close relationship between hardware and software. We will use the architecture to develop optimizations and resources' updates. We will study algorithms to avoid any famine or non-managements of resources. Locking and interlocking will be studied to understand and avoid.

Learning path


    • The notion of programs (static organization, memory location)
    • The notion of process (dynamic, instructions, heavy processes, lightweight processes)
    • The concept of communication between processes (locking, inter locking, famine)
    • The competition of processes(concept of competitive programming, active standby)
    • The scheduling of the tasks of an operating system
    • Physical and virtual memory management

    Course content


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