The definition and principal function of BIOS (Basic Input/Output System) in details using schematics

What is bios, explained BIOS with pictures and diagrams

What is bios, updating the BIOS, the BIOS firmware and other questions related to the bios are what we will answer today, God willing. As my loved ones, we follow the blog of the electronics professionalism space before proceeding to explain the topic, we will give it titles so that it is easy to understand, and it will be as follows:

BIOS pictures

We will see in this course

Definition of BIOS
BIOS chart
Firmware BIOS or flash BIOS
BIOS uses
BIOS Update
Asus laptop

The eight-legged BIOS is the newest and the most widespread in recent times and is characterized by being similar to small asses such as mosfets and others, except that it is somewhat large in size compared to the mosfet. It should be noted that the latter is fed by a voltage of 3.3 volts on its terminal, which carries the number 8, which is called Pin 8 in English.

What is bios

This other type of BIOS is found abundantly in large motherboards, i.e. for desktop computers, and is characterized by being square in shape and with a unique and unique shape that makes it separate from the rest of the board's hardware, making it easy to distinguish and find it quite easily and without trouble. It should be noted that most of this type is AMIBIOS.

Regarding its voltage, it does not differ from its first eight-legged counterpart, i.e. it is supplied at 3.3 volts.

Definition of BIOS

What is bios? A BIOS is an electronic component that can be classified from an integrated chip, an 8-legged ESI, which is exactly the same as a mosfet in terms of shape and number of legs. The simple difference that is often is that the BIOS is somewhat large compared to the mosfet. But in terms of function, there is a big difference, as the mosfet works to convert the electrical signal from the two circuit to the source in the case of a p-channel, while the bios is something else. When we talk about it, we are interested here in the firmware or the flash file that is of the bin type. And we will go into detail. For this point in subsequent paragraphs.

BIOS chart

After watching the demo diagram for the BIOS, you will fully conclude the vast difference between it and the mosfet that we talked about.

Here is the scheme

What is bios

Firmware BIOS or flash BIOS

For a firmware or a BIOS flash file, it is a bin file. Which consists of a set of instructions, these instructions are what make up this file and they are usually in different capacities, 1 MB, 2 MB, 4 MB, 8 MB, 16 MB and so on according to the requirements and type of the processor or motherboard if the expression is valid. For reference only, it is not necessary to replace a corrupted BIOS, for example, with another of a different capacity, rather the change must be of the same capacity.If for example, a BIOS with a capacity of 8 MB is damaged, we replace it with another with the same reference, features and capacity, i.e. 8 MB, otherwise it will not work with us and will not boot the computer.

BIOS uses

As for the uses of the bios, it is in fact not so many that it is used only at the start of operation of most electronic devices, we choose as an example the BIOS of the laptop and specifically we choose the Asus laptop so that we can talk about it and be the reference for understanding the bios of the rest of the electronic devices. The BIOS function of this laptop that we have chosen as an example is during the operation of the device and in a clearer expression during its boot up, so that the firmware stored inside it checks all components of the laptop before giving responsibility for the final operation of the Windows system. Among these components that it checks are:

keyboard

Touchpad

CD reader

LEDs for explanatory lighting

Most of the big aces are on the motherboard

And not that

Of course it is worth noting that the inspection process performed by the BIOS firmware, if you find one of the basic components of the laptop that you are checking is not safe, the laptop will not work and a message will appear explaining the cause of the problem. This is the role of the BIOS, dear, which is to ensure the integrity of all computer components before the final operation of the latter

BIOS Update

With regard to updating the BIOS, this is done in two ways:

The first method is to download the BIOS file of this type, which we will update from the Internet, taking into account during the download the choice of the name and version of the computer - the Asus laptop ... - which we will update its BIOS as well as the Windows operating system installed in our example we update the BIOS laptop Asus. Why These two points must be taken into account, i.e. the computer version and the type of system in order for the firmware to work properly.

The second method is to flash the BIOS chip, and this process is not easy, because its work requires removing the BIOS chip from the motherboard and programming it outside the board using a special programmer.

Asus laptop

Below I will bring you the interface of the Asus laptop that we have chosen as an example to clarify the topic

This is the settings interface

What is bios

Asus laptop

So, dear followers and fans of the electronics professional space blog, I hope that the BIOS topic will appeal to you. There will be another topic here on the blog that talks about BIOS malfunctions and it will be a very useful topic for maintenance lovers.