{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is cross-program calling?","a":"Inter-Process Communication (IPC) refers to the process of exchanging data and information between different processes in a multi-process environment. It is a communication mechanism designed to achieve efficient cooperation between multiple processes, solve problems of data sharing and synchronization between processes. Through inter-process calls, processes can easily share data and pass messages, thus achieving cooperative processing tasks between multiple processes.  In operating systems, database management systems, and distributed systems, inter-process calls play a significant role. Common ways of inter-process communication include pipes, message queues, and sockets."}]}],"pr":"6102a8fe625cd4e64d99fb3836a469bd4bbff3e972b9c1884d57ee19f7a428a2"}