Introduction - If you have any usage issues, please Google them yourself
Operating system courses banking system design, process communication and process synchronization mechanism practice: some banks offer 10 service windows (seven pairs of private service windows, three pairs of public service windows) and 100 seats for waiting customers. When the customer arrives bank, if any empty seats, then take a number machine to receive a number, wait for the call. You can only take a number machine allows a customer to use, there are two types of the public and the private number, each customer can only select one. When the salesperson is idle, select a customer by call number, and serve.