this is a ppt on computer BIOS.

1. Understanding
Computer BIOS
Basics, Functions, and Importance of BIOS
Presented by: Shamik Das

2. Introduction to BIOS
 - BIOS stands for Basic Input/Output System.
 - It is the firmware embedded in a computer's motherboard.
 - BIOS is responsible for initializing and testing hardware
components during startup.
 - Acts as an interface between the operating system and
hardware.

3. Functions of BIOS
 - POST (Power-On Self-Test): Checks hardware functionality
before booting.
 - Bootstrap Loader: Loads the operating system into memory.
 - BIOS Setup Utility: Allows users to configure hardware settings.
 - CMOS Settings Management: Stores system time, date, and
configuration settings.

4. Types of BIOS
 - Legacy BIOS: Older BIOS with text-based interface and limited
support for modern hardware.
 - UEFI (Unified Extensible Firmware Interface): Modern
replacement for BIOS with a graphical interface, support for
larger storage devices, and enhanced security.

5. BIOS vs. UEFI
 - BIOS: Text-based, supports up to 2TB storage, limited security,
slower boot speed.
 - UEFI: Graphical interface, supports larger storage, Secure
Boot, faster boot speed.

6. How to Access BIOS
 - Restart your computer.
 - Press the designated key during boot (e.g., F2, F10, DEL, or
ESC).
 - Navigate through the BIOS/UEFI menu to configure settings.

7. Common BIOS Settings
 - Boot Order: Determines the sequence of devices for startup.
 - CPU and RAM Configuration: Adjust processor and memory
settings.
 - Power Management: Controls power-saving features.
 - Security Options: Set up passwords and Secure Boot.

8. BIOS Update Process
 - Identify your motherboard model.
 - Download the latest BIOS update from the manufacturer’s
website.
 - Use a USB drive to flash the update in BIOS/UEFI.
 - Restart your system after the update.

9. DUEL BIOS
 The ASUS Extreme 4 mobo & many modern motherboards have a
feature called "dual bios support." Evidently if you flash your bios
incorrectly you can return the previous bios because there are
two separate bios chips.

10. Importance of BIOS Security
 - Secure Boot: Prevents unauthorized OS loading.
 - BIOS Password Protection: Restricts access to system settings.
 - Firmware Updates: Fix security vulnerabilities and improve
performance.

11. Conclusion
 - BIOS is an essential part of a computer’s startup process.
 - UEFI has largely replaced Legacy BIOS due to its advanced
features.
 - Understanding BIOS settings can help optimize and secure
your computer.

12. Q&A
 - Feel free to ask any questions!
 - Thank you for your time!