What is bios

[Jumas548]

Please dont copy from wikipedia, I have read all the stuff but I still dont get it lol... I am absolute beginner at pc things so could someone explain it to me

[BlueChinchillaEatingDorito]

13 minutes ago, Jumas548 said:

Please dont copy from wikipedia, I have read all the stuff but I still dont get it lol... I am absolute beginner at pc things so could someone explain it to me

Basically it's initializes and test the hardware (CPU, RAM, GPU, I/O devices, etc.) before it proceeds to the OS. Back then the BIOS will also handle access to this hardware for the OS. Nowadays access to hardware is done directly by the OS. 

 

All you really need to know is that it's where the system does a self check upon power on, and is where you can change system settings like CPU overclocking, memory XMP profiles, and sometimes fan profiles. 

[Mira Yurizaki]

In a more basic level for beginners, it's where you configure hardware settings of your computer. Things like which storage drive to look at first, second, or third when booting, if you want to disable integrated hardware on the motherboard, what frequency you want on your CPU or RAM, etc.

[TTQGaming]

It's like the control panel of your pc parts(cpu, ram, overclocking etc...) You can do basically anything with it

[3 Lions]

 

[GoodBytes]

To clarify and explain perhaps why you don't get the Wiki article. There is a difference between BIOS and BIOS Setup Utility (which stores configuration in the CMOS chip (a fancy name to say memory chip or are for memory in the BIOS chip which can't keep data saved if power is cut, and hence needs a battery to keep the info in there).

 

When we say "go to the BIOS", or "change something in the BIOS" we really mean "BIOS Setup Utility", which is the (usually, but not always), blue and gray screen that only supports keyboard navigation and has hardware related configuration, including system date and time.

 

But the BIOS is on the back not only initialing your hardware, and start the OS, but managing tasks on the back, like fan control, power management table configuration and more.

 

UEFI replaces the BIOS and BIOS Setup utility, but to avoid confusion, it is still referred by some, and many manufactures as "BIOS"

UEFI setup screen can still look like the old BIOS Setup utility, the nice interface is something that the UEFI supports, but not a distinction. It is up to the motherboard manufacture. Same for all UEFI abilities, like accessing the internet and updating itself within the UEFI, fancy menu, fancy animations, startup logo of the OS, and so on.

[evana007]

BIOS more specifically Basic Input Output System. from its name may be it we understand that it can control the input and output devices but this is not true at all. BIOS is the most important thing to run an OS properly. we can get more specific information from Gmail Support USA. it is one of the oldest systems in our devices.