In order for the board to be able to recognize and configure all the components that we connect to a PC, it needs an operating system, to call it something that is easily understood. Both BIOS and UEFI take care of any PC’s basic hardware configuration, as well as low-level communication and operation.
Both BIOS and UEFI are the same. The main difference between the two is that the UEFI is the logical evolution of the BIOS that has been used since the first computers. The UEFI, unlike the BIOS, has a Graphic interface with which you can interact through a mouse and not only with the keyboard as it happens with the BIOS.
Like Windows, Linux, macOS, iOS and Android, they receive regular updates to improve the features already present, it is also used to fix any performance problem on the device as well as to add compatibility improvements. Being the BIOS/UEFI in the operating system, it also needs to be updated periodically through its manufacturers.
These updates, in addition to adding improvements and fixing bugs, are also used to support new hardware, whether they are processors or graphics cards and that, without these updates, it would not be possible to use the hardware on the computer. In addition, possible vulnerabilities that have been detected since the launch of the previous version are also fixed, vulnerabilities that can put security at risk of our team.
There is no single method to update the UEFI on current computers, since each manufacturer uses a different method and this is always associated with downloading the version from their website on a USB, accessing the UEFI to install it.
Other manufacturers, mainly laptops, allow the update to be carried out using their own applications or by connecting directly to the Internet and downloading the update from the UEFI. Although it is a process that can put the equipment at risk if the equipment loses power during the process, in recent years various security systems have been implemented to prevent us from having to throw the board away in these situations.
If we plan to change any component of our computer, the first thing we should do is check if we have any updates pending to prevent the board from not recognizing it at the first opportunity and being forced to use another computer to download and update the firmware. of the plate.
With the arrival of UEFI, BIOS update problems were solved, a BIOS that, due to its limitations, and the lack of interest on the part of manufacturers, could not be updated in practically any case, being a serious problem for PCs of that time both then and today.