Even when working in a high-level language, it is sometimes necessary to interact with low-level system operations. Version 12 makes controlling the system a breeze with dedicated functions to query system properties such as available memory, running processes and network interfaces. Interprocess communication and network debugging are improved with extended socket and packet capture functionality. Even the handling of bytes and characters has been updated, with full Unicode support. Taken together, interacting with the operating system and other programs is smoother than ever.