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OS

Semaphores

For the solution to the critical section problem one synchronization tool is used which is known as semaphores. A semaphore...

• BY Team Topic Nest
• June 15, 2023
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OS

Critical Section Problem

Consider a system consisting of n processes (P0, P1, ………Pn -1 ) each process has a segment of code which...

• BY Team Topic Nest
• June 14, 2023
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OS

Operating System Services

An operating system provides an environment for the execution of the program. It provides some services to the programs. The...

• BY Team Topic Nest
• May 11, 2023
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OS

Virtual Machines

By using CPU scheduling & virtual memory techniques an operating system can create the illusion of multiple processes, each executing...

• BY Team Topic Nest
• May 11, 2023
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OS

System structure

Simple structure There are several commercial system that don‘t have a well- defined structure such operating systems begins as small,...

• BY Team Topic Nest
• May 8, 2023
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OS

System Programs

System programs provide a convenient environment for program development & execution. They are divided into the following categories. File manipulation:...

• BY Team Topic Nest
• April 20, 2023
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OS

System Calls

System calls provide the interface between a process & the OS. These are usually available in the form of assembly...

• BY Team Topic Nest
• April 7, 2023
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OS

Basic Functions of Operation System

The various functions of the operating system are as follows: 1. Process Management: A program does nothing unless its instructions...

• BY Team Topic Nest
• April 7, 2023
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C and C++

Write a C program to read name and marks of...

#include <stdio.h> int main() { char name[50]; int marks, i,n; printf(“Enter number of students”); scanf(“%d”, &n); FILE *fptr; fptr=(fopen(“C:\\student.txt”,”a”)); if...

• BY Team Topic Nest
• March 24, 2023
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C and C++

Write a program to open a file using fopen()

#include<stdio.h> void main() { fopen() file *fp; fp=fopen(“student.DAT”, “r”); if(fp==NULL) { printf(“The file could not be open”); exit(0); }

• BY Team Topic Nest
• March 24, 2023
• 0 Comments