Preemptable is a term used in computer programming to describe a process or task that can be interrupted and put on hold in favor of a more important task. When a process is preemptable, it means that it can be stopped at any time to allow another process to run.

For example, in a multitasking operating system, the CPU may preempt a lower-priority process to allow a higher-priority process to run. This ensures that critical tasks are given priority and can be completed in a timely manner.

Preemption can also refer to the ability of a user to interrupt a running process, such as clicking on a button to cancel a long-running operation in a software application.

Overall, the concept of preemptability is important in computer systems to ensure that resources are allocated efficiently and that critical tasks are given priority.

Examples of Preemptable Tasks:

  • Background processes in an operating system
  • Print jobs in a printer queue
  • Video playback in a web browser

For more information on preemptability, you can visit the Wikipedia page here.