1 / 7

System Setup

System Setup. CGS2564. What Happens When You Start up a Computer?. BIOS Basic Input Output System A set of programs stored in ROM Contain instructions on how to get started Power-On Self Test POST System checks its hardware Bootstrap loader Loads the operating system from disk

josh
Download Presentation

System Setup

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. System Setup CGS2564

  2. What HappensWhen You Start up a Computer? BIOS • Basic Input Output System • A set of programs stored in ROM • Contain instructions on how to get started • Power-On Self Test • POST • System checks its hardware • Bootstrap loader • Loads the operating system from disk • “Boots up”

  3. What HappensWhen You Start up a Computer? • How does it “know” • What hardware it’s supposed to have? • Which disk to boot from? • Information is stored in “memory” • CMOS RAM • How to access and change this information? • System setup utility • Stored in ROM

  4. CMOS • Special type of memory chip • Stores information even when the computer is off • Complimentary Metal Oxide Semiconductor • Requires low power • supplied by battery

  5. System Setup Program • Supplied by BIOS manufacturer • Varies by brand/version • Little standardization • Can be accessed during startup • After POST • Before OS loaded from disk • How to access • Function key(s) • DEL key • Key combinations • CTRL-ESC • CTRL-ALT-ESC • Etc.

  6. System Setup Utility

  7. Why Access the CMOS Settings? • Get information • CPU type and speed • Service tag number • Record information in case disaster strikes • Computer cannot boot without this information! • Change configuration after adding new hardware • Today – usually detected automatically • Set the boot drive sequence • Boot from the hard drive first instead of floppy drive • Security • Set boot-up password • Power Management • Different from Control Panel settings • Convenience • Automatically turn on Num Lock • Turn off PC speaker

More Related