Why do device drivers need to be loaded when the BIOS already provides code for hardware-to-OS communication?
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- In what way does interrupt latency impact the amount of time it takes to move between different applications and windows?When an OS gets an interrupt from a device, what mechanism does it usually use to select the code to handle the interrupt?Why do device drivers need to be loaded when the BIOS already provides code for hardware-to-OS communication?
- Why is it necessary to load device drivers if the BIOS already has the code necessary for hardware to operating system communication?What should the operating system's kernel do when it boots up if its size is minimized?Since the BIOS already has the necessary code for hardware to operating system connection, why are device drivers required?
- When the BIOS already contains hardware-to-OS communication code, why do device drivers need to be loaded?I/O interfaces have a role, but what does it mean specifically?What are the differences between User-mode and Kernel-mode in operating systems? How they both differ in performing IO operations, like turning on a webcam or microphone?
- There is a lot of controversy around the relative merits of interrupt-driven operating systems and non-interrupt-driven operating systems.8. What does Privileged Mode execution mean in an OS? (AKA supervisor mode)Why are device drivers necessary, given that the BIOS already has code that communicateswith the computer’s hardware?