RPC (Remote Procedure Call)

Remote Procedure Call (RPC) is a protocol that allows a program to execute a procedure (a set of instructions) on another computer over a network, as if it were local. Imagine you ask a friend (the remote computer) to help you with a task. You send them a message detailing what to do, and they perform the task, sending the result back to you. This enables different systems and applications to communicate and work together smoothly, even if they're on separate machines, making complex operations easier to handle.