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eolas/zk/Threads.md
thomasabishop db4140c321 Autosave: 2024-06-26 06:15:05
2024-06-26 06:15:05 +01:00

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zadl Threads
operating-systems
Wednesday, June 26, 2024

Threads

A process is a running instance of a given program. A program runs sequentially handling one task at a time, however we may need to run certain tasks in parallel.

Think of a program that is downloading a resource from the internet and wants to update the UI at the same time to show the download process.

If the program is strictly sequential, once the program starts the download, the UI is neglected since the CPU time dedicated to the process must be focused elsewhere.

We need the updating of the UI and the download to execute in parallel. This is achieved via operating system threads of execution.

A thread is a schedulable unit of execution within a process.

Related notes

Processes