--%>
Assignment Help - homework help

Functions of Interrupts and system calls

What are the various functions of Interrupts and system calls?

E

Expert

Verified

a.    Interrupts allow the CPU to switch back to the kernel mode, as this cannot be done automatically.

b.    The CPU consist of many interrupts which can allow certain types of events such as timers, keyboard and output devices to interrupt the CPU.

c.    For the events in the form of interrupts that are taking place in the CPU an interrupt handler is being setup to handle it.

d.    During the interrupt the CPU stops the working of the currently running program and it switches to the kernel mode.

e.    The interrupt handler is being executed to manage the events that are occurring in the system.

   Related Questions in Programming Languages

  • Q : Explain Polymorphism Polymorphism : It

    Polymorphism: It is the ability of an object reference to be employed as if it referred to an object with various forms. The polymorphism in Java outcomes from both class inheritance and interface inheritance. The actually different forms frequently o

    		•
  • Q : Define Case sensitive Case sensitive :

    Case sensitive: The test which is sensitive to whether a character is in upper-case (example, 'A') or lower-case (example, 'a').

    		•
  • Q : Embedding C Code-Promela Embedding C

    Embedding C Code: Promela supports the use of embedded C code fragments inside the models through the use of the c_code primitive. 12_c code.jp</span></p> </div> <!-- /comment-box --> </li> </td> </tr><tr> <td> <li> <div class=

    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 : Define the term Condition Define the

    Define the term Condition: It is a Boolean expression which controls a conditional statement or loop.

    		•
  • Q : Explain Right shift operator Right

    Right shift operator: Right shift operator (>>) is the bit manipulation operator. It shifts the bits in its left operand zero (0) or many places to the right, according to the value of its accurate operand. The most important bit from before the

    		•
  • Q : Explain Return statement Return

    Return statement: It is a statement employed to terminate the execution of the method. The method with void return type might only have return statements of the form as: return;

  • Q : What do you mean by program counter

    What do you mean by the term program counter? Write down its use?

    		•
  • Q : Define the term Mutual recursion Define

    Define the term Mutual recursion: Recursion which outcomes from two methods calling one other recursively.

    		•
  • Q : What is Hash function Hash function : A

    Hash function: A function employed to generate a hash code from the random contents of an object. The classes can override the hash Value method, inherited from the Object class, to state their own hash function.

    		•