Operating system:three Easy Pieces---Process (Note)

Source: Internet
Author: User

1. How can the operating system provide the illusion of a nearly-endless supply of said CPUs?

The OS creates this illusion by virtualizing the CPU. The basic technique, known as the time-

Sharing the CPU, allows users to run as many concurrent processes as they would like. Potential

Cost was performance, as each would run slowly if the CPU (s) must be shared. To implement Virtualization

Of the CPU, and to implement it well, the OS would need both some low-level machinery mechanisms;

Mechanisms is low-level methods or protocals that implement a needed piece of functionality.

Operating system:three Easy Pieces---Process (Note)

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.