Operating systems

OS fundamentals

What an operating system does and its core building blocks.

Terms

4 terms

  • Device driver

    A device driver is the operating system component that translates generic kernel requests into the specific commands a piece of hardware understands.

  • Kernel

    The kernel is the core of an operating system that runs in privileged mode and manages the CPU, memory, devices and access to hardware for all…

  • Operating system

    An operating system is the core system software that manages a computer's hardware, runs programs and provides common services to applications and users.

  • System call

    A system call is the controlled entry point through which a user program asks the operating system kernel to do privileged work such as file or…