Kernel, processes and threads Windows and Linux

Windows Architecture Operating system design Modified microkernel Layered Components HAL Interacts with hardware, drives device components on mainboard Abstracts hardware specifics that differ between systems of the same architecture Microkernel Basic system mechanisms Thread scheduling, interrupt dispatching, etc.

Kernel information

Process and Thread Process Execution context Program code Resources Associated threads Threads: units of execution Process and threads are objects

Thread Scheduling

Processes information

Linux Architecture Monolithic kernel Contains modular components, however UNIX-like or UNIX-based operating system Six primary subsystems: Process management Interprocess communication Memory management File system management VFS: provides a single interface to multiple file systems I/O management Networking

Linux Kernel Architecture

Process and Thread Organization

Process information