98
An example
nProcess P1 and P2 are running this same procedure and have access to the same variable “a” nProcesses can be interrupted anywhere nIf P1 is first interrupted after user input and P2 executes entirely nThen the character echoed by P1 will be the one read by P2 !!
static char a;
void echo()
{
   cin >> a;
   cout << a;
}