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Understanding of BIOS and their Functions
BIOS (Basic Input Output System)
BIOS stands for Basic Input Output System. is a software (written in assembly language) that regulates the basic functions of computer hardware. The BIOS is embedded in a memory chip (ROM or Flash Memory made from Comlpimentari Metal Oxide Semiconductor (CMOS) found on the motherboard. A battery commonly referred to as a CMOS battery serves to keep the date and other settings that we have set in the BIOS from missing or returning Initial configuration even though the computer is turned off.
How the BIOS Works
The way the BIOS works is to start with the initialization process, where in this process we can see the amount of installed memory, type of hard drive and its capacity and so on. The BIOS will then search, initialize and display information from the Graphics Card. Then it will check other ROM devices such as hard drives and then do RAM testing, namely memory count up test. After all component tests have been successfully carried out, the BIOS will then look for the location of the boot device and the Operating System.
BIOS function
The function of the BIOS is to provide instructions known as POST (Power On Selft Test) which is a command to initialize and identify system devices such as CPU, RAM, VGA Card, Keyboard and Mouse, Hard drive, Optical (CD / DVD) drives and other hardware when the computer starts booting.
Settings Menu In BIOS
How to access BIOS
To access the BIOS we can do by pressing certain keys (usually the Delete key or F2) on the keyboard the first time the computer is turned on. There will be words such as "Pres F2 to enter setup", then just press the F2 key repeatedly.
How to setup or configure this BIOS varies depending on the vendor maker, here I will display menus in the BIOS that we commonly encounter, the Phoenix Award BIOS. The main menus in this BIOS are:
- Standard CMOS Features, for setting the date and viewing the detected hard disk, etc.
- Advanced BIOS Features, boot device priority settings (choice of device for first boot) can be set here.
- Advanced Chipset Features
- Integrated Peripherals
- Power Management Setup, the distribution of voltage for each peripheral which is often used for overclocking
- PnP / PCI Configuration, configuring the clock / speed of each device installed on the PCI / PnP port, for example VGA PCI, Lancard PCI, Wirelles PCI, HDMI port, etc.
- PC Health Status, we can check the temperature and voltage from Power Supply here.
- Load Fail-Safe Defaults (Load Factory Settings), select this menu to return all settings to their original mode (default).
- Load Optimized Defaults, restore optimal settings recommended by the factory default.
- Set Supervisor Password, provide a password so that users are not able to change the BIOS settings arbitrarily
- Set User Password,
- Save & Exit Setup, save the BIOS settings then exit.
- Exit Without Saving, exit the bios screen without saving settings.
CONCLUSION:
BIOS (Basic Input Output System) is a very vital thing that can help us when we want to do troubleshooting on computer damage. Such as :
- The case of a totally dead computer turned out to be overcome by resetting the computer's BIOS,
- When you want to install windows the first boot settings must be set first here.
- See computer tooling specifications
- Even when optimizing computer performance, better known as overclocking.
source: kumpulanmateripenting.blogspot.com
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