This Kernel-mode device driver includes some generic hardwares which loads with operating System as part the OS these are BIOS, motherboard, processor and some other hardwares which are part of kernel software. The following figure illustrates the interaction between user, OS, Device driver and the devices:įor almost every device associated with the computer system there exist Device Driver for the particular hardware.But it can be broadly classified into two types i.e., Card reader, controller, modem, network card, sound card, printer, video card, USB devices, RAM, Speakers etc need Device Drivers to operate. After the action they also shows their reactions by delivering output or status/message from hardware device to the Operating system.For Example a printer driver tells the printer in which format to print after getting instruction from OS, similarly A sound card driver is there due to which 1’s and 0’s data of MP3 file is converted to audio signals and you enjoy the music.

Introduction of Deadlock in Operating Systemĭevice Drivers depend upon the Operating System’s instruction to access the device and performing any particular action.

Page Replacement Algorithms in Operating Systems.

Difference between dispatcher and scheduler.

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Preemptive and Non-Preemptive Scheduling.

Process Table and Process Control Block (PCB).

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Monolithic Kernel and key differences from Microkernel.

Kernel I/O Subsystem in Operating System.

Difference between Operating System and Kernel.

Difference between Application Software and Operating System.

Difference between System Software and Application Software.

Difference between Hardware and Software.Introduction of Basic Input Output System (BIOS).ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.

What is virtual device driver