Why do device drivers need to be loaded when the BIOS already provides code for hardware-to-OS communication?
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Why do device drivers need to be loaded when the BIOS already provides code for hardware-to-OS communication?
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Solved in 3 steps with 2 images
- Since the BIOS already has the necessary code for hardware to operating system connection, why are device drivers required?If the BIOS already includes the necessary code to make the hardware talk to the OS, then device drivers seem unnecessary.What is the role of the device driver in an operating system, and how does it enable hardware communication?
- How useful are device drivers if the BIOS already contains the necessary instructions for the operating system to talk to the computer's components?Based on particular instances, which operating system is quicker, interrupt-driven or not?What kinds of operations should the kernel be responsible for when the operating system boots up if you want a lightweight OS?
- SW executing under control of an OS will be interrupted. Explain what is essential about genuine interrupts. Are interrupts needed? How can a user see from the code, where interrupts will occur, why they arise, how long they last, and how often they happen?What is a device driver, and how does it enable communication between hardware and the operating system?How has the development of UEFI (Unified Extensible Firmware Interface) impacted the traditional BIOS in modern motherboards, and what benefits does it bring to system boot and configuration?