GeeksforGeeks

What NT stands for in windows NT?

what are the various reasons for segmentation fault on Linux

How do you see which shell you are in UNIX?

Give the output of the following program

main()
{
   printf("hot java");

    fork()

    exit(0);
}

Why do most hardware testers use stacks in their programs to store data?

Why paging, segmentation needed?

what are the various ways to terminate a process by itself normally and abnormally. Also the ways to kill the process by another process in unix

virtual memory allows us to run processes of size more than RAM. Is there any other use of virtual memory?

you have to write a program which tell about how many times it has run. ex:

if you run first time it will print 1.
if you run second time it will print 2.
like this.

this can easily done by File Handling but think other solution like IPC.

after booting your system, your program's output start from 1.

can anyone plz tell me?
which function calls the main() in c and c++
and
can we create threads in c if yes how??

Assuming that locks are the only reason due to which deadlocks can occur in a system. What would be a foolproof method of avoiding deadlocks in the system

Questions about paging, loading, linking etc.

Concept of 32-bit OS, virtual memory, inter-process communication etc.

How to implement an efficient file cache?
The requirements include a detailed description on design consideration, data structure to be used and implementation in C as well.

some questions on semaphores, threads, mutex, dining philosopher's problem etc etc and all kind of os questions.locking mechanisms,concurrent updates etc etc.

OS - Scheduling, readers/writers, locking/atomicity protocols

Synchronization involving Mutexes, Atomic operation, Race condition