some concepts related with operating system

SEMAPHORES In programming, especially in UNIXsystems, semaphores are a technique for coordinating or synchronizing activities in which multiple process compete for the same operating system resources. A semaphore is a value in a designated place in operating system (or kernel) storage that each process can...

RMI program

//code for remote Interface import java.rmi.*; public interface HelloInterface extends Remote { public String getMessage() throws RemoteException; public void display() throws RemoteException; } //Code for Server import java.rmi.*; import java.rmi.server.*; public class HelloServer extends...