What does the Unified Extensible Firmware Interface (UEFI) improve upon?

The Unified Extensible Firmware Interface (UEFI) improves upon traditional BIOS systems primarily by enhancing boot security and supporting 64-bit CPU operations. In contrast to the older BIOS architecture, which is limited to 16-bit and 32-bit operating systems, UEFI can handle 64-bit operating systems, allowing for greater memory addressing and improved performance.

Furthermore, UEFI includes features such as Secure Boot, which helps ensure that only trusted software can be executed during the boot process. This feature significantly enhances system security by preventing unauthorized or malicious code from running before the operating system loads. The integration of these advancements marks a considerable step forward in firmware technology, facilitating a more secure and efficient boot process for modern computing environments.