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What is a system call?
A system call is a request made through any program to the operating system for performing tasks, picked by a predefined set, that the said program doesn't have needed permissions to execute into its individual flow of execution. System calls give the interface between the operating system and a process. Most operations interacting along with the system need permissions not available to a user level process, for example: input and output performed with a device present in the system or any form of communication along with other processes needs the use of system calls.
Q. Explain Direct Addressing Mode with example? Direct Addressing Mode A direct operand signifies to contents of memory at an address referred by the name of the variable.
What are the features of PROM? They are programmed directly by the user. Faster Less expensive More Flexible
A design for the seven segment decoder is required. The decoder has four inputs which represent a number from 0 to 9 in binary and seven outputs which are connected to the seven
How to Calculate the Logic Circuit Outputs? Once the Boolean expression for a circuit output has been acquired, the output logic level can be determined for any set of input le
The idea behind inline functions is to insert the code of a known function at the point where the function is called. If done carefully, this can improve the application's performa
A computer system provides protection using the Bell-LaPadula policy. How would a virus spread if A) the virus were placed on the system at system low (the compartment that all o
Q. If a plane is in the air also there is a fly flying inside the plane does the plane get heavier when the fly lands? Answer:- It is true that a fly puts weight on a plan
Write down different system calls for performing different kinds of tasks. The major types of system calls are given as: Process Control: These kinds of system calls are
First-Order Inference Rules: Here now we have a clear definition of a first-order model is that we can define soundness for first-order inference rules in the same way such we
Write down the drawback of top down parsing of backtracking. Following are disadvantages of top down parsing of backtracking: (i) Semantic actions can't be performed whereas
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