--%>
Assignment Help - homework help

Kernel Mode, interrupts and system calls

Illustrate what are the different functions of Kernel Mode, interrupts and system calls?

E

Expert

Verified

a.      It starts running up the services and processes on the system at that instant when the operating system loads kernel gets activated.

b.    Kernel which is up and running sets up the kernel mode as well as it handles the paging and virtual memory of the system.

c.       It helps in generating the processes that permits the kernel to let them run in the user mode.

d.    Kernel mode never sanction unauthenticated services or processes to enter the system without any permission.

e.    Kernel mode never tolerate the scripts or network to access the computer or any other file without permissions.

   Related Questions in Programming Languages

  • Q : What is Cursor Cursor : This is a

    Cursor: This is a visual representation of the existing position of the mouse on the user's virtual desktop. Cursor shapes are frequently set to symbolize the current state of a program – utilizing an hour glass shape to point out that the user

    		•
  • Q : Write a recursive implementation of

    Assignment 5 Selecting Array Elements Implement the following C++ code in assembly language, using the block-structured .IF and .WHILE directives. Assume that all variables are 32-bit signed integers: int array[] = {10,60,20,33,72,89,45,65,72,18}; int sample = 50; intArraySize = s

    		•
  • Q : Explain Default initial value Default

    Default initial value: It is the default value of any variable not explicitly initialized whenever it is declared. The fields of numeric primitive types contain the value zero by default, Boolean variables encompass the value false, char variables enc

    		•
  • Q : State Default label Default label : The

    Default label: The destination for all values employed in a switch statement expression which do not contain explicit case labels. The default label is not obligatory.

    		•
  • Q : Define Fetch-execute cycle

    Fetch-execute cycle: The simple set of steps which are endlessly recurring by a computer's Central Processing Unit for each and every program instruction: `Fetch the next instruction suggested by the program counter,' `update the program counter to pa

    		•
  • Q : What is pipe What is meant by the term

    What is meant by the term pipe?

    		•
  • Q : Explain the term packing life cycle

    Explain the term packing life cycle.

    		•
  • Q : Define Deadlock Deadlock : A situation

    Deadlock: A situation which occurs whenever two threads each acquires the lock to one of a set of resources which they both require.

    		•
  • Q : What is Logical error Logical error :

    Logical error: It is an error in the logical of a class or method. Such an error may not lead to an instant runtime error, however could have a noteworthy impact on overall program exactness.

    		•
  • Q : Explain Twos-complement notation

    Twos-complement notation: In twos-complement notation, the most noteworthy bit in an integer value is employed as the sign bit. A 1 bit points out a negative number, and a 0 bit points out a positive number. The positive number can be transformed to i

    		•