Small presentation about Basic Input-Output System.

1. Topic: BIOS

2. Definition.
 BIOS (Basic Input-Output System)- is an electronic
set of instructions that a Personal Computer (PC)
uses to successfully start up.

3. Physical Location.
 It is located on a chip on the motherboard inside of a computer and is
designed to be protected from disk failure.
 If you need to reload BIOS, you can press red button on your motherboard or
you can pull out motherboard’s battery.

4. How to enter.
 Basically it depends on your PC.
 Common keys:
Del;
F1;
F2;
F10;
Esc;
Ctrl+Alt+Esc.

5. Main Function.
 One of the main functions of the BIOS is to give
instructions for the Power-On Self Test (POST). This self
test ensures that the computer has all of the necessary
parts and functionality needed to successfully start itself,
such as use of memory and a keyboard and other
components.

6. Besides.
 BIOS loads hard drive’s and removable drive’s drivers, so they can
successfully start. Then it loads the main parts of operating
system such as: MBR or GPT and disks into memory, so operating
system can continue load itself.
 MBR (master boot record) and GPT (GUID Partition Table) –
code and data, which are needed for further load of operating
system and located in first physical sectors on hard drive or
another data storage device.
 MBR supports hard drives whose size is less than 2.2 terabytes.
GPT supports hard drives whose size is more than 2.2
terabytes.

7. Main Settings.
 Based on the name, in this chapter there are the main BIOS settings to the
processor, the amount of installed memory, including the time and date, disk
drive application parameters and general system information (BIOS version,
processor model, installed memory size)

8. Advanced Settings.
 This section has the largest number of options for configuring components and
PCs and includes several important subsections. Here are the parameters
responsible for CPU operation, RAM, video adapter, Chipset, PCI data bus and
Plug and Play on-board peripherals (Onboard Device Configuration ), USB ports
(USB Configuration) and other hardware.

9. Power Settings.
 Here are the parameters responsible for power supply and power saving of PC,
monitoring the operating temperatures and voltages of its main components,
as well as controlling the speed of rotation of the fans.

10. Boot Settings.
 Already from the title it is clear that this section is responsible for configuring the
boot parameters of the computer. It here are settings for determining the
sequence of polling the boot devices and the inclusion of the "Num Lock" key are
placed. In security you can change PC’s password.

11. Tools.
 ASUS EZ Flash – with this option, you have opotunity to update the BIOS
from such drives as: floppy disk, Flash-disk or CD-ROM.
 AI NET - using this option, you can get information about the cab
connected to the network controller.

12. Exit.
 This section is responsible for exiting the BIOS setup menu.

13. Thank you for your attention.