What is the difference between a process and a program? What happens if we run the following program on UNIX? main () {while (fork() >= 0);} Consider the following program: void forkthem (int n) {if(n > 0) {fork(); forkthem(n-1);}} main(){forkthem(5); printf (".");} How many processes are created if the above piece of code is run which is equivalent, how many dots ('.') will be printed)