unix, Operating System

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what is difference between file descriptor and file pointer?

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What is a process, What is a process? A process is a program in impleme...

What is a process? A process is a program in implementation. It is an active entity and it contains the process stack, having temporary data and the data section includes globa

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#include #include #include #include #include int main(void) { int pchan[2], pid, rval, cvar; char buf[20]; if (pipe(pchan) == -1){

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In the mean while the fork() system call the Kernel creates a copy of the parent process's address space and adds it to the child process. But the vfork() system call do no

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Explain about demand paging? A demand paging system is same to a paging system with swapping. Processes reside on secondary memory. When we require executing a process, we chan

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