Virtualizing The CPU

These flashcards cover key concepts and definitions related to CPU virtualization and its management by operating systems.

What is the main concept introduced in the lesson 'Virtualizing The CPU'?

The concept of virtualizing the CPU, allowing many programs to run seemingly at once.

What does the provided code in cpu.c do?

It repeatedly checks the time for a second and prints the user-provided string.

How do you terminate a running program in a UNIX-based system during execution?

By pressing 'Control-c'.

What happens when multiple instances of cpu.c are run on a single processor?

The OS creates an illusion of multiple virtual CPUs, allowing all instances to run seemingly at once.

What is the role of the Operating System (OS) in CPU virtualization?

The OS manages the illusion of multiple virtual CPUs that allows many programs to run simultaneously.

What are policies in the context of operating systems?

Policies are mechanisms employed by the OS to decide which program should run when multiple programs request CPU time.

What is the significance of APIs in the context of operating systems?

APIs provide the interfaces through which users can interact with the OS to manage programs.