Difference Between UEFI and BIOS
UEFI |
BIOS |
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UEFI acts as the first software that runs when the computer is powered on, providing the necessary functions to initialize the operating system and the hardware components |
BIOS stands for Basic Input/Output System. It is a firmware interface that acts as the first software layer between hardware components and the operating system of a computer system |
It provides a unified driver model, which allows drivers to be used for both firmware and operating systems. |
The drivers are specific to the BIOS firmware and may not be compatible with the operating system. |
Start hardware in parallel, which speeds up boot time |
Slowly start the hardware, which can cause slow boot times. |
A graphical user interface (GUI) is often included for easy navigation and configuration. |
Often, they are text-based, which can be very difficult for users. |
GUID supports Partition Table (GPT) disks, allowing larger partitions and more partitions to be created. |
Usually it is limited to the Master Boot Record (MBR) partition setting, with limitations on partition size and number. |
It can be a communication capability for performing firmware updates and other tasks on the network. |
Generally, lack of network capabilities, requiring manual firmware updates. |
UEFI(Unified Extensible Firmware Interface) and How is it Different From BIOS
The Unified Extensible Firmware Interface (UEFI), like BIOS (Basic Input Output System), is a firmware that runs whilst the PC is booted. It initializes the hardware and loads the running device into the memory. However, being the more current answer and overcoming various obstacles of BIOS, UEFI is prepared to replace the previous.