[OPERATING SYSTEMS] 4 - Threads & Concurrency

This illustration explains the fundamental distinction between concurrency and parallelism in computer systems with the help of task execution flow. On the left side, concurrency is shown, where a single microprocessor core handles multiple tasks by switching between them very quickly. Here, the CPU does not run all tasks at the exact same time, but instead divides its time efficiently, so each task makes progress in small steps. This creates the illusion of simultaneous execution, which is espe