Describe the Differences Between Bios and UEFI Firmware

Last Updated on March 19, 2022 by QCity Editorial Stuff

People often confuse bios and UEFI firmware, so I’m going to discuss the differences. A BIOS is a type of firmware that operates on older PCs and can be used for system configuration settings such as boot order or memory timing. UEFI (Unified Extensible Firmware Interface) is a replacement for BIOS and it has more features than its predecessor. It provides faster startup times, better performance, and more security by isolating different parts of your computer’s operating system from each other. However, if you’re using an old PC then it might not support UEFI since most new computers use this newer technology which means you’ll need to use a boot disk like BartPE to make changes to your bios settings.

BIOS and UEFI are two different types of firmware that provide the interface between hardware and software. BIOS is a legacy technology with some limitations, while UEFI is an improved type of firmware that has more features than its predecessor. These technologies have been used in most PCs for decades but with newer models moving towards UEFI-only support, many people are left wondering what the difference is between them. Let’s find out.

Comparison between Bios and UEFI Firmware

Parameters of ComparisonBiosUEFI Firmware  
FeatureBIOS is the firmware that starts your computerUEFI Firmware is a new type of firmware with better security features
LoadLoadDo not load
ProgramBios is limited in what it can doEFI Firmware can run other programs like antivirus software and Windows 10
DisplayThe BIOS menu only displays textUEFI firmware menu looks similar to Windows 10 with icons and pictures for easy navigation
UpdateBios updates are typically done by booting up from a CD or USB driveupdates for UEFI require downloading an update file online 

What is Bios?

Bios firmware is a type of software that helps manage the hardware on your computer. It has many different purposes, including managing power consumption and controlling the boot process.

Bios firmware is a type of software that runs on the hardware. It is an interface between the computer’s hardware and its operating system. The bios firmware performs some basic tasks like memory management, displaying messages for user input, controlling peripheral devices connected to the computer, enabling or disabling some peripherals (like hard disk drives) by default; it also initializes some subsystems within the device such as video card or the keyboard controller. 

It enables us to configure some parameters like boot sequence and time-out values through menu sequences displayed on the screen at startup before loading an operating system. Bios can be updated if needed but need special tools to do so; this update process should only be done by professionals due to its complexity.

Describe the Differences Between Bios and UEFI Firmware

What is UEFI Firmware?

UEFI firmware is a type of firmware that is used in personal computers, tablet computers, and smartphones. It replaces the Basic Input/Output System (BIOS) firmware that was used in earlier computing devices. UEFI firmware includes a graphical user interface, provides extended features beyond those available in BIOS, and supports multitasking operating systems. In contrast to BIOS, which is DOS-based, UEFI firmware runs in an operating system environment.

UEFI firmware is a type of firmware that is used in computers. It replaces the traditional Basic Input/Output System (BIOS) and provides several benefits, including faster startup times and improved security. In this blog post, we will discuss what UEFI firmware is, how it works, and some of its benefits. We will also provide steps on how to install or upgrade UEFI firmware on your computer.

Describe the Differences Between Bios and UEFI Firmware

10 Describe the Differences Between Bios and UEFI Firmware

1. BIOS is the firmware that starts your computer.

2. UEFI Firmware is a new type of firmware with better security features.

3. UEFI Firmware has replaced BIOS on most modern computers because it offers more protection against malware and viruses. 

4. The difference between BIOS and UEFI Firmware is that there are no “boot disks” to fix problems in UEFI, but you can use tools like Windows System Restore or Command Prompt to access files.

5. The main difference between BIOS and UEFI is how the system boots up – if you have an older machine with only a legacy mode, then it will boot using the old-fashioned way (BIOS) while newer machines will default to their Secure Boot Mode (UEFI).

6. Computers running on Intel chipsets typically run on either Legacy Mode (BIOS) or Unified Extensible Firmware Interface (UEFI), which was first introduced by Intel back in 2006 as an alternative to its older predecessor.

7. Bios is the first thing that loads when you turn on your computer.

8. UEFI firmware is a new type of bios that can’t be changed.

9. The UEFI firmware controls things like boot order and power management.

10. It’s more secure than traditional bios because it has built-in protections against malware, viruses, and other attacks.

Interesting Statistics or Facts of Bios

1. Bios are the first thing people see when they search for you online.

2. People spend an average of 5 seconds reading your bio.

3. The top 3 words that attract attention in a bio are “I”, “love”, and “my”.

4. A professional, well-written bio can increase your chances of getting hired by 20%.

5. 1 out of every 10 resumes get rejected because employers think the applicant is overqualified for the position.

6. You should use keywords to describe yourself in your bios – these will help recruiters find you easier.

Interesting Statistics or Facts of UEFI Firmware

1. The first version of UEFI was released in 1994.

2. It is a type of firmware that replaces the Basic Input-Output System (BIOS).

3. It can be found on many computer systems, including those from Dell and Lenovo.

4. To use it, you need a 64-bit CPU with an x86 or x64 instruction set architecture.

5. There are different versions of UEFI firmware – Aptio IV being one example.

6. These types of firmware have been used by Intel since 2008 for its new processors.


BIOS and UEFI firmware are two types of computer hardware that have been around for a long time, but there is some confusion as to what the difference is between them. In this blog post, we’ve given you definitions, examples, and even a few videos on how bios vs UEFI work to make sure you know which one does what. If you need any assistance or would like us to help with your company’s IT needs please don’t hesitate to reach out.

The basics of bios vs UEFI firmware: Bios is the firmware that starts up your computer before you can start using it. UEFI, on the other hand, handles more advanced tasks like booting from the hard drive or CD-ROMs and loading device drivers during startup.


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